trek slash 9.9 geometry

Trek Slash Review | The all-new Slash is the iron fist in a velvet glove

The not-so-minor details.

Trek Slash 9.9 X01

Trek Bicycles Australia

https://www.trekbikes.com

$11,499 AUD

- Wickedly supple and sensitive suspension - Super stable in steep and rough terrain - The playful, agile attitude - Generous frame protection - Stealthy quiet on the trail

- Downtube storage could be more generous - We'd like to see a slightly steeper seat tube angle

Dan & Ben review the 2021 Trek Slash

Trek’s flagship enduro pinner, the Slash, is receiving a major and welcome overhaul for 2021. As the spiritual successor to the Remedy 29, the current Slash was released over four years ago. In that time the enduro racing scene has changed considerably. No longer are 29in wheels looked upon with concern and disdain. Nowadays, you’ll be hard-pressed to find an EWS team that isn’t rolling on 29in wheels. As the sport has professionalised, we’re seeing athletes train harder, race times get tighter, and courses that wouldn’t be out of place at a World Cup downhill race. Unlike DH racing though, enduro racers have to back up those race runs over multiple stages, often over multiple days, with hundreds and thousands of metres of climbing between the start and finish. Oh, and they’re regularly racing those trails blind too.

Watch our video review of the 2021 Trek Slash 9.9 here!

Trek Slash overview

Given the evolving demands of enduro racing, enduro bikes need to evolve too. Taking on board these changes, the new Trek Slash has had a 10mm lift in travel at both ends, and now features a 170mm fork matched to 160mm of rear wheel travel. Following requests from Trek’s EWS athletes, it also gets a bit slacker and longer as expected, which is to help it cope with the gnarlification of modern day enduro racing.

All of that is built around a brand new chassis that features in-built storage, a new Knock Block system, and a serious amount of battle armour. Along with the unique rear shock and adjustable geometry, Trek is making use of every tool in its disposal to produce what it says is the fastest and most technically proficient Slash yet.

For the past month we’ve been testing the top-end Slash 9.9 to see how all of those changes play out on the trail, and whether this newly refocussed enduro race bike is now more of a one-trick-pony. Before we get to our ride impressions though, let’s take a detailed look at what sets the Slash apart from its predecessors and its contemporaries.

There’s a new custom shock

At the heart of the new Slash is a unique rear shock that Trek has co-developed alongside the gurus at RockShox. This shock is currently exclusive to Trek for 2021, and it’ll come on all of the Slash models in Australia, bar the cheapest Slash 7.

On the outside, it doesn’t look dramatically different. It’s essentially a Super Deluxe Ultimate shock, which features adjustable air pressure, air volume, rebound and compression damping. On the inside you’ll find the Trek-designed Thru-Shaft damper, along with some magic sauce the two brands have cooked up together.

Why Thru-Shaft?

Thru-Shaft itself isn’t a new technology in itself. Trek first introduced the Thru-Shaft damper design back in 2017, where it debuted on high-end Fuel EX, Remedy and Slash models.

In essence, Thru-Shaft eliminates the traditional Internal Floating Piston (IFP) that is found inside most rear shocks. The IFP is a sealed piston that sits at the base of the shock underneath the oil chamber. The job of the IFP is to separate the damper fluid on one side, from a small nitrogen-charged chamber on the other side.

Why do we need an IFP in the first place? Firstly, that gas-charged chamber is necessary to accommodate fluid expansion as the oil heats up. Secondly, it’s there to handle the change in volume of the oil chamber as the shock is compressed. When the shock is compressed, the main damper shaft is introduced into the oil chamber, and the further it goes in, the more room it takes up. To compensate for that increase in volume, the IFP is able to slide and compress the nitrogen-charged chamber behind it. As the shock rebounds, the IFP then pushes back on the oil chamber.

But in Trek’s Thru-Shaft shocks, there is no IFP. Instead, the damper shaft runs all the way through the oil chamber. And during compression, the damper piston exits the shock completely – you can see the silver rod emerging from the base of the shock as it goes through the travel. Since the damper piston no longer impacts on the volume inside the oil chamber, there is no need for a traditional IFP.

And what about fluid expansion? That’s what the piggyback reservoir is for – it’s a big ol’ thermal compensator that handles the fluid expansion as the oil heats up in the shock.

But in Trek’s Thru-Shaft shocks, there is no IFP. Instead, the damper piston runs all the way through the oil chamber. And during compression, the damper piston exits the shock completely – you can see the silver rod emerging from the base of the shock as it goes through the travel.

The main driver for the Thru-Shaft design is all about reducing stiction and making the shock movement as slippery as possible. A normal IFP uses seals, and those seals need to slide smoothly up and down the the inside of the shock’s stanchion. Because of the high-pressure environment the IFP lives in, it’s likely to experience stick-slip during changes of direction. By removing the IFP entirely, the Thru-Shaft damper reduces stiction and this stick-slip effect, improving the damper’s sensitivity and its willingness to change direction quickly. On the trail, it simply results in a more responsive and buttery-feeling to the rear suspension – something we’ve noted on the Remedys and Fuel EXs we’ve tested in recent years, including our most recent long-term test bike .

RE:aktiv begone

While the Slash’s new shock carries over the Thru-Shaft concept, one of the big differences is that it no longer uses the RE:aktiv valve on the main damper piston. Instead you’ll find a standard shim valve on the main piston (which differs from an off-the-shelf RockShox shock), which Trek has moved to in favour of more gluey descending-oriented damping performance. While the RE:aktiv damper piston does provide excellent pedalling support, and will continue to be used on the Fuel EX, the new Slash is placing a greater priority on traction and high-speed control, and it’s claimed that a standard shim valve arrangement is the best solution for this application.

The second key difference with the custom Super Deluxe Ultimate shock is found in its damper adjustments. The rebound dial is much smaller and located on the side of the shock, and it now features numbers to assist with tuning. There’s a two-position lever that allows the rider to toggle between open and firm settings.

On top of the lever is a separate adjuster that allows you to tune the low-speed compression damping of the open mode. The blue cam gives you three compression settings: -1, 0 and +1. According to Trek and RockShox, this adjuster is all about fine-tuning the shock’s response to rider inputs, depending on the terrain at hand. So you can firm up the feel of the shock to provide more support for pedalling and riding smoother bikepark type trails, or soften it up for riding steep and rooty trails where you want maximum traction. Consider it as a wet/dry adjuster. Regardless of that setting though, it’s claimed that the shock’s high-speed compression circuit remains completely independent, and it’s in here where Trek and RockShox have been cooking up a little extra special sauce.

The third big difference is in the shock’s air can itself. RockShox states that stiction has been lowered for smoother performance, while the negative spring volume has been increased to create a more progressive spring curve. In fact, it’s claimed to be more progressive than the current MegNeg design, which basically eliminates any need for a MegNeg hop-up. There’s the option to tune with volume spacers too, which we’ll get onto in a bit.

Frame features

Aside from the custom shock, there are big changes afoot in the Slash chassis too. And when we say big we mean it literally – the Slash now takes a 34.9mm diameter seat post. This allows Trek to build a fatter, stronger and shorter seat tube, which provides greater compatibility with long-stroke dropper posts.

To go with it, Bontrager is rolling out a new 34.9mm Line Elite dropper post. The bigger diameter chassis promises increased strength and stiffness, and the post gets a whopping 200mm of travel on the longest option. Internally, the MaxFlow is said to provide faster compression and rebound for slicker performance.

No Super Boost needed

Looking at all the other key mounting points on the Slash frameset, it’s clear that Trek has made a concerted effort to stay away from anything too edgy standards-wise.

While some other brands have adopted the newer Super Boost 157x12mm hub standard for their long travel 29ers, Trek is sticking with the Boost 148x12mm standard that it invented and launched back in 2014. However, by employing the wider 55mm chainline that’s now on offer from both Shimano and SRAM (which pushes the chainring out a further 3mm over a traditional Boost drivetrain), Trek’s engineers say they’ve been able to get all the necessary clearances without having to resort to Super Boost. And they’ve done it too – there’s room for a 34T chainring and a 29×2.5in tyre, even with the Slash’s impressively short 435mm chainstays.

Common sense has prevailed elsewhere too. No longer will you find a press-fit bottom bracket cups. Instead, the Slash gets a 73mm threaded BB shell, which is surrounded by ISCG 05 chainguide tabs.

The dropouts utilise a SRAM UDH derailleur hanger on one side, and 180mm post-mount brake tabs on the other. For the true gravity enthusiasts, it’s worth noting that the Slash is cleared for use with up to a huge 220mm disc rotor. And while the rear shock is a custom jobby, the size isn’t – most aftermarket metric shocks will fit in its place, including coil shocks.

Secret storage

Brought over from the latest Fuel EX, the Slash now gets integrated downtube storage. What’s impressive is that you’ll get that sane downtube trap door on the alloy frames too. For the alloy Slash, the downtube is hydroformed with a depression around the storage door, before the door is then cut out of the tube. Apparently it’s a very difficult process to achieve on an alloy frame, which is probably why we haven’t seen it on any other brand.

The trapdoor itself is identical between the alloy and carbon frames, and it’s the same as what you’ll find on the Fuel EX. A discreet lever opens and secures the latch, and inside the cavity is a soft tool roll that’s designed to hold a spare tube, levers and CO2. The bottle cage is included with the bike, and Trek says every frame size, including the Small, will fit a bottle without drama.

A bonus of the trapdoor design is that it provides you access to the internal gear, dropper and brake lines. The cables and hoses are zip-tied to the underside of the door, which helps to minimise vibration and noise.

Knock Block 2.0

Trek has also updated its headset steering limiter system, called Knock Block 2.0. Addressing our criticism of the previous design, Trek has increased the available steering radius, so you now get 144° of rotation.

What’s interesting though, is that the Knock Block system isn’t actually necessary anymore. That’s because the downtube no longer uses the StraightShot profile of the old frame – it features curves at both ends, which means the fork crown no longer contacts the downtube during a full rotation.

We’re told that the designers decided to keep the Knock Block system as it doesn’t really impact the riding experience, and it helps to protect the brake lines, shift and dropper cables in the event of a bar-spinning crash. If it still bothers you though, the Knock Block can be removed entirely.

The Slash’s geometry was no doubt due for an update, and Trek has willingly obliged. However, while the designers wanted to address the needs of Trek’s EWS racers, they also wanted to retain the comfort, balance and agility that made the previous version such a popular and accessible bike.

As such, the head angle kicks back a degree, and the reach has grown by 15-40mm depending on the frame size. The seat tube angle (both actual and effective) has increased by two degrees, which helps to shift the pilot further forward on the bike, without pushing them so far forward as to put excessive weight onto the wrists and arms.

Trek is producing five frame sizes in the Slash, from Small through to X-large. All frame sizes are now built around the same stubby 35mm stem length, which aims to keep the front-end steering consistent regardless of rider height.

Also found on every frame is the familiar Mino Link, which is located in the upper seatstay pivot. The Slash comes set from the factory in the Low position, but flipping the link into the High position will lift the BB height by 7mm and steepen the head and seat angles by 0.5°. Here are lots of numbers for those who want them;

Trek Slash price & specs

If you’re digging the new Slash vibe, you’ll be pleased to know that stock is available as of right now through Trek’s dealer network. In Australia, we’ll see four models come to our shores – two with carbon frames, and two with alloy frames. Additionally, you’ll be able to get a standalone frameset too – Trek Australia will be offering a Slash frameset in both carbon and alloy variants.

Read on for a closer look at each of the four complete bike options, followed by our ride impressions from testing the top-end Slash 9.9 X01.

2021 Trek Slash 9.9 X01

• Frame | OCLV Mountain Carbon Fibre, ABP Suspension Design, 160mm Travel
• Fork | RockShox ZEB Ultimate, Charger 2.1 RC2 Damper, 44mm Offset, 170mm Travel
• Shock | RockShox Super Deluxe Ultimate, Thru-Shaft 3-Position Damper, 230×62.5mm
• Wheels | Bontrager Line Elite 30, OCLV Carbon Rims, 30mm Inner Rim Width
• Tyres | Bontrager SE5 29×2.6in Front & SE4 2.4in Rear
• Drivetrain | SRAM X01 Eagle 1×12 w/X01 30T Carbon Crankset & 10-52T GX Eagle Cassette
• Brakes | SRAM Code RSC 4-Piston w/200mm Rotors
• Bar | Bontrager Line Pro, OCLV Carbon, 35mm Diameter, 27.5mm Rise, 820mm Wide
• Stem | Bontrager Line Pro, Knock Block, 35mm Length
• Seatpost | Bontrager Line Elite Dropper, 34.9mm Diameter, Travel: 100mm (S), 150mm (M/ML), 170mm (L), 200mm (XL)
• Available Sizes | S, M, ML, L, XL
• RRP | $11,499 AUD

2021 Trek Slash 9.8 XT

• Fork | RockShox ZEB Select+, Charger 2.1 RC Damper, 44mm Offset, 170mm Travel
• Drivetrain | Shimano Deore XT 1×12 w/XT 30T Crankset & 10-51T Cassette
• Brakes | Shimano Deore XT 4-Piston w/203mm Rotors
• RRP | $8,999 AUD

2021 Trek Slash 8

• Frame | Alpha Platinum Alloy, ABP Suspension Design, 160mm Travel
• Fork | RockShox Lyrik RC, Charger 2 Damper, 42mm Offset, 170mm Travel
• Wheels | Bontrager Line Comp 30, Alloy Rims, 30mm Inner Rim Width
• Tyres | Bontrager XR5 29×2.6in Front & XR4 2.4in Rear
• Drivetrain | SRAM GX Eagle 1×12 w/Descendent 6K Eagle 30T Crankset & 10-52T Cassette
• Brakes | SRAM Code R 4-Piston w/200mm Rotors
• Bar | Bontrager Line, Alloy, 35mm Diameter, 27.5mm Rise, 820mm Wide
• Stem | Bontrager Line, Knock Block, 35mm Length
• Seatpost | TranzX Dropper, 34.9mm Diameter, Travel: 100mm (S), 150mm (M/ML), 170mm (L), 200mm (XL)
• RRP | $6,299 AUD

2021 Trek Slash 7

• Fork | RockShox Yari RC, Motion Control RC Damper, 42mm Offset, 170mm Travel
• Shock | RockShox Deluxe Select+, 230×62.5mm
• Drivetrain | SRAM NX Eagle 1×12 w/Descendent 6K Eagle 30T Crankset & 11-50T Cassette
• Brakes | SRAM Guide T 4-Piston w/200mm Rotors
• RRP | $5,299 AUD

Testing the 2021 Trek Slash 9.9 X01

With its metallic orange paint job, the Slash 9.9 X01 bares a resemblance to the distinctive Tiger Mica colour of Holden’s VU Commodore SS ute. We’d say the finish is just a tad classier here though, and indeed the Slash impressed as soon as it was pulled out of the box. It wasn’t too much of a strain to do so either – this big travel 29er tips the scales at a respectable 14.56kg.

That’s with the tyres setup tubeless, and we’ve gotta give props to Trek for the fact that the bike arrives genuinely tubeless ready – TLR strips and valves are pre-installed, and two bottles of sealant are included. Just remove the valve cores, squirt in the sealant, inflate and away you go. Nice!

Being the poshest model that comes to Australia, the Slash 9.9 X01 comes decked out with plenty of high-end toys including the new RockShox ZEB Ultimate fork, SRAM X01 Eagle shifting, powerful Code RSC disc brakes, and a 170mm travel dropper post on our Large test bike. There’s plenty of carbon to be found too – the crank arms, handlebars and rims are all made of plastic-fantastic.

Speaking of, both the front triangle and back end are crafted from Trek’s OCLV Mountain carbon fibre, with a magnesium rocker link being the only main metal component of the frame. It leads to an impressively low weight – including the rear shock and hardware, Trek says you’re looking at just 3.12kg for a carbon Slash frame. It’s quite a bit lighter than the alloy version, which is claimed to weigh 4.32kg.

Fit & sizing

We chose a Large size Slash to suit our 181-183cm tall testers. Dan; an accomplished enduro racer who currently rides a Specialized Stumpjumper EVO Carbon in the S3 size. And Ben; a downhiller reborn as an XC/trail pinner who rides a Large-size Trek Top Fuel.

Two different perspectives from two different testers. Dan; an accomplished enduro racer who currently rides a Specialized Stumpjumper EVO Carbon in the S3 size, and Ben; a downhiller reborn as an XC/trail pinner who rides a Large-size Trek Top Fuel.

Both riders were quickly at home with the Slash and its healthy 486mm reach, despite the very short 35mm stem. However, the huge 820mm ape-hangers didn’t last long and were soon chopped down to a more tree-friendly 780mm.

The saddle was also slid as far forward on the rails as it could go. With the saddle height set at 770mm, the seat angle measures out pretty close to the claimed 75.7° (in the Low geometry position). Sliding the saddle forward for our long-legged testers helped steepen it closer to 78°.

There were few complaints in the fit department – the Bontrager Arvada saddle is excellent, and the lock-on grips are nice and tactile, without being offensively so. They do use dual locking clamps, and while the outer collar is smoothly tapered, you can still feel it underneath your gloves if you run your hands wide on the bars. That said, the metal ends have proven to be much more durable than single-locking grips that have rubber ends.

Setting up the Slash

Kudos to Trek for its brilliant suspension setup calculator, which provides a reliable baseline for getting the fork and shock setup for your weight. Combined with the anodised sag gradients on the ZEB fork and Super Deluxe shock, setting up the Slash is made that much easier. We followed the recommendations for our 80kg testers, and both the pressures and rebound settings were pretty much spot on. For reference, Trek recommends 30% sag on the shock and 15% for the fork when sitting stationary on the bike.

There is further tuneability to be had with volume spacers. The ZEB comes with a single Bottomless Token inside, and that suited us fine. The rear shock comes with zero tokens inside, and that also worked well. However, you can add one volume spacer to the shock’s negative spring to make it more linear. Conversely, you can add up to three volume spacers in the shock’s positive spring if you want more progression. That’s probably something only the heaviest of riders will investigate, since the Slash has quite a progressive spring rate to begin with – we never experienced a harsh bottom-out with the stock settings.

Does it get any smoother than this?

Easily the standout attribute of the new Slash is just how plush and controlled the suspension is. We were expecting that from the ZEB Ultimate, as we’ve already tested it separately . It’s a banging fork, with superb suppleness, huge torsional rigidity and steering accuracy that makes it an excellent match for the Slash’s capabilities. It’s the rear suspension that really blew us away though, with a level of off-the-top sensitivity that sees the shock ease into its travel the moment you push down on the saddle.

That activity plays out all the way through the travel too. Trek says the Thru-Shaft damper design eliminates the ‘nose’ of a standard IFP design, and we can believe them. So little force is required to get the shock moving, and it changes direction seamlessly, offering faster reactivity under both compression and extension. Whether it’s copping a square-edge rock at speed, cornering over off-camber washboard bumps on a fast fireroad descent, or skimming across more granular terrain on a loose traverse, the back end maintains a high level of contact with the terrain, boosting grip and confidence levels.

Previous Thru-Shaft shocks have proven to be slippery performers, but now that Trek has ditched the RE:aktiv valve in favour of a more conventional shim stack valve, it’s taken that damping performance to a new level. It’s bloody impressive stuff.

Thanks to the extremely active and supple suspension performance, the Slash is hugely stable in rough terrain. Sure the geometry is dialled, but it’s the suspension on this bike that really encourages you to push hard in technical terrain, knowing the bike will stay composed and stable. It’s a fine example of a bike that rides well beyond the numbers in a geometry chart.

It’s not just a monster truck

From first impressions, our testers initially thought the Slash would be more of a point-and-plow kind of bike. Sure, you can totally ride this way with confidence and let it steamroll down the trail. But where it surprised most was its inherently playful nature. The short chainstays definitely contribute in this regard, and while the shock is extremely sensitive, your feet don’t get lost in a gooey pile of over-damped syrup. That’s the new air spring at play, which delivers fantastically usable mid-stroke support. That responsive attitude encourages you to get creative, try different lines and gap sections of trail.

It’s also a really fun bike to slide around and let the rear hang out when things get loose, giving it a character that is often lost in long travel enduro race bikes. We found the Slash very composed in the air, with the generous travel and progressive end-stroke providing a cosseting return to earth. You can get away with a lot of mistakes while riding this bike, and have an absolute riot doing so.

But where it surprised most was its inherently playful nature. The short chainstays definitely contribute in this regard, and while the shock is extremely sensitive, your feet don’t get lost in a gooey pile of over-damped syrup. That’s the new air spring at play, which delivers fantastically usable mid-stroke support. That responsive attitude encourages you to get creative, try different lines and gap sections of trail.

Given how big and slack it is, we were also really impressed with the Slash’s climbing ability, particularly when things got rough and technical. The buttery shock performance keeps the rear tyre digging for traction, and the low-slung top tube gives you room to manoeuvre. Add in the low gearing from the 30T chainring and 52T sprocket out back, and there’s some serious grunt on offer for muscling your way up choppy ledges, roots and blown-out moto ruts.

The active suspension does mean you’re best to stay in a seated position on smoother climbs though. Stand up to mash the pedals, and Bob will join the party. There’s always the lockout lever, but our testers only ever used it on the road or the smoothest of fireroad climbs – it’s too firm for actual trail riding, and it’s low down enough that it’s a pain to regularly switch back and fourth between smooth and rough sections.

You can tighten things up by flipping the low-speed compression dial into the firmer +1 position though. And because the shock is so supple, it’s possible to run slightly higher pressures to lift the ride height, without sacrificing that much small-bump sensitivity. Flipping the Mino Link into the High position will also help with climbing performance by steepening the effective seat tube angle, while getting you a bit more pedal clearance too.

So stealthy, so quiet!

Modern bikes are getting very good at dampening out noise, but there’s always something that ruins the serenity. Rattly brake pads, a flappy cable, a creaky bearing. Not the Slash though – our test bike developed no play, and no noise all throughout the test period. Just blissful, quiet performance with the sound of tyres rumbling through the forest.

On that note, we love how well thought out the protection on this bike is. The gear cable is shielded underneath a thick chainstay guard, which is textured to dampen chain slap. There’s another strip of rubber on the inside of the drive-side seatstay to eliminate chain contact, and Trek has even put a metal plate below the disc calliper to prevent the rotor from scratching the paint. Brilliant!

This bike is seriously quiet, thanks to carefully managed cabling and a plethora of body armour designed to dampen chain slap and rock strikes.

Those who ride on trails with lots of loose rock will know the importance of downtube protection. It only takes one rock kicked up by the front wheel to lay a crack in a lovingly engineered carbon downtube – we know, it’s happened to us enough times on other bikes. On the Slash, the underside of the downtube is almost entirely covered by two thick, rubber-lined armour plates. As well as giving greater rock strike protection, the extended coverage is also useful for hoisting your bike over the back of a tailgate on shuttle day. The big plastic armour plates are screwed into the frame, so it’s possible to replace them, or remove them if you desperately want to show off more of the Commodore SS paint job.

As well as giving greater rock strike protection, the extended coverage is also useful for hoisting your bike over the back of a tailgate on shuttle day.

The MRP chainguide with its lower bash plate is another handy addition, and the scratches and dings it’s collected from many trail missions attest to its worth. As for the Knock Block? Our testers never noticed it was there, so we’d be happy to leave it in place. It does mean you could trim the cables and brake line to be quite short to neaten up the cockpit, without fear of them being ripped out in the event of a crash.

What could be improved?

Despite Trek’s talk of keeping things balanced and approachable on the Slash, we do think the designers could have gone a lick steeper on the seat tube angle. We’re also not talking about going vertical – an extra degree would do nicely. The Slash is slightly steeper than the Fuel EX (75.6° vs 75°), but because the Slash has more travel and a more active suspension design, the dynamic seat angle is more affected on the climbs as the shock sinks into its travel.

Yes, a steeper seat angle pushes more weight onto your hands. And yes, it’s generally less comfortable for rolling along on more intermediate terrain. But a bike of this travel is generally going to be ridden on bigger and steeper terrain, where horizontal bimbling is less of a consideration.

That being said, the Bontrager Arvada saddle has a usefully long clamping area on its rails, and our testers were able to get into a comfortable position with the saddle slammed all the way forward. The top tube length is quite long on this bike, so the cockpit never felt too cramped even with the saddle in that position.

The takeaway point? The seat angle ain’t a dealbreaker – there’s adjustment there, so use it if you want to get your hips further the cranks. And if you really want to prioritise climbing performance, then you can always flip the Mino Link into the High geometry position.

The Slash is the third Trek we’ve tested with downtube storage, and thankfully this one didn’t have the rattling issues of the last bike . It’s fundamentally a great idea, and the included tool roll is a nice touch – just make sure you use a lightweight inner tube, as a standard tube won’t leave you any room to fit tyre levers or CO2.

On that note, the width of the trapdoor is quite a bit narrower than a Specialized SWAT door (40mm vs 52mm). That 12mm difference makes it quite a bit trickier to fit bulkier items and XL burritos, so it takes a bit more thought and creativity for packing your haul.

While we’re throwing ideas into the wishing well, it’d be great to see the Slash 9.9 come with Bontrager’s new BITS tool system inside the fork steerer tube. That way you could more easily ditch the backpack, knowing that you’ve got all the basic tools and spares with you, hidden in the bike.

Component highs & lows

Overall the Slash 9.9 X01 has impressed us with a great overall package. The suspension, brakes, drivetrain, wheel and tyre combo all support its nature of being a hard-charging bike.

The rear shock is super impressive, being really smooth and supple with no discernible stiction. This translates to amazing small bump response. Coupled with the equally smooth new RockShox ZEB, once set up the bike feels stupendously plush and balanced. When air-sprung forks and shocks are this good, we’re not sure why you would choose heavier, and less adjustable coil suspension.

The Bontrager Line Elite 30 wheels were also a standout. These have recently been redesigned with a new carbon rim profile that’s said to be almost twice as strong as its predecessor. And we’re happy to report that they’ve withstood many jarring interactions with square edge rocks, and are still in one piece. Weighing in at 2,071g, they’re a couple hundred grams more than the Line Pro 30 wheels we have on test separately , but they do get more readily available J-bend spokes, and they still feature the super buzzy Rapid Drive 108 hubs. They also get that 2-year crash replacement deal , if you do manage to toast a rim.

The Bontrager Line Elite 30 wheels are a standout, and the SE5/SE4 tyre combo have been equally impressive, with great grip and decent rolling resistance.

The Bontrager SE5/SE4 tyre combo was equally impressive, with great grip and decent rolling resistance. The rear tyre does look a bit minimal and comes in quite light on the scales at just 919g (the front tyre is 1,059g), but it held up really well in some chunky terrain, suffering a single tiny cut in the sidewall that was easily sealed with a plug. If this were our bike, we’d be putting an insert into the rear tyre anyway.

The Line Elite dropper post seems marginally quicker in action compared to Bontrager’s previous droppers, but it’s still a ways off the light and smooth action of a Fox Transfer or BikeYoke Divine. The lever shape is good though, and overall it’s performed without hassle. We’ll be interested to see how it fares after a full season of abuse.

Flow’s Verdict

The new Trek Slash is one mighty impressive bike. It packs a load of punch, with the big chassis, newly slackened geometry and burly parts spec working up a thirst for high-speed drama. Its punch is delivered inside a velvety smooth glove though, thanks to the outrageously plush suspension that brings comfort, poise and control to the most chundery of trails. Paired to the superb ZEB up front, this bike just oozes confidence.

As descending really steep and gnarly shit has become the raison d’être for the modern enduro bike though, we were worried that Trek would turn the Slash into a pro-only machine. Our doubts proved unfounded though, and that is indeed the biggest surprise of this bike.

Yes it’s a 29er with 170/160mm of travel and a 64° head angle, and it’ll absolutely steamroll the trail if you let it. But it isn’t a tank. It’s comfortable, reasonably efficient, and it actually climbs technical stuff well. We’d have no qualms taking it on bigger all-day missions.

It’s also playful, chuckable and willing to get airborne. And it’s this all-round competence makes the Slash much more versatile than we expected. We had a blast riding this bike, even when the many of our rides might not have warranted such a big travel bike. But when there are so few downsides, we kept asking ourselves; why wouldn’t you want that extra travel?

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2019 Trek Slash 9.9

A 29″ carbon frame full suspension enduro bike with ultra high-end components. Compare the full range

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Dec 2020 · Mike Wirth

The new Trek Slash 9.9 X01 sees many updates making it an even more capable all-mountain, enduro mountain bike. See how it performed.

Read Review

Dec 2020 · Mike Kazimer

The Slash received multiple updates for 2021, but it's still an enduro race machine at heart.

Light and stiff frame – encourages you to go fast

Great shock tune

In-frame storage

Wide range of available frame size options

Seat tube angle could still be a bit steeper

Shorter cranks and an even longer dropper post would have been nice to see

Sep 2020 · Alan Muldoon

First ride review of 2021 Trek Slash 9.9. Trek’s 29in enduro trail blazer returns with more travel and a progressive makeover.

Fast and easy to ride. Revised geometry and sizing bring it bang up-to-date. Suspension set-up is straightforward and the drain port in the bottom of the down tube should stop the water pooling below the shock.

All of the cables need shortening to stop them rattling. Trek’s MinoLink is a non-feature as we never clipped a pedal even in the low setting.

After making an unofficial appearance last weekend at the Enduro World Series event in Zermatt, Switzerland, the latest incarnation of the Trek Slash was officially unveiled Wednesday. On paper, the new 29er rock smasher looks to be more capable than its predecessor, boasting a bump in rear suspension travel from 150 mm rear/160 mm front to 160 mm/170 mm.

Trek is ready to unleash the new Slash, which gets more travel, a more practical frame design and a very special rear shock. We've been testing the 2021 Trek Slash 9.9 for the past month, and it turns out this ain't no one-trick pony. Read on for everything you need to know about the new Slash.

Wickedly supple and sensitive suspension

Super stable in steep and rough terrain

The playful, agile attitude

Generous frame protection

Stealthy quiet on the trail

Downtube storage could be more generous

We'd like to see a slightly steeper seat tube angle

Jun 2019 · Steve Solt

This 150/160mm aluminum 29er features trail handling and enduro travel.

May 2019 · McCoy

Economy-class enduro

The Slash 29 didn’t just turn heads, it blew minds, when it launched three years ago. And now it comes in an affordable, aluminum-frame option.

Last updated September 6 Not listed for 1,723 days

Trek Slash 9.9 X01: first ride review

• Alan Muldoon
• September 3, 2020

New Trek Slash is manageable and maneuverable, without forcing you to tip-toe down the toughest trails

Product Overview

Trek slash 9.9 x01.

• Fast and easy to ride. Revised geometry and sizing bring it bang up-to-date. Suspension set-up is straightforward and the drain port in the bottom of the down tube should stop the water pooling below the shock.
• All of the cables need shortening to stop them rattling. Trek’s MinoLink is a non-feature as we never clipped a pedal even in the low setting.

Manufacturer:

Price as reviewed:.

First ride review of 2021 Trek Slash 9.9. Trek’s 29in enduro trail blazer returns with more travel and a progressive makeover.

>>> Best enduro mountain bikes: 150 to 170mm travel full suspension bikes

Trek Slash 9.9 need to know

• Trek ups the travel on the Slash 29 by 10mm – it 
now gets a 170mm-travel suspension fork with 160mm out back
• The sizing and geometry both move forward, making the frame longer and slacker than before
• Storage has been added to the down tube, and it isn’t exclusive to the carbon models
• Carbon frame with magnesium rocker link and a 34.9mm seat tube diameter for increased dropper post insertion
• New Knock Block design increases the steering angle from 58º to 72º
• Trek offers a five-model range, starting at £2,650 for the alloy Slash 7

The new Slash offers a razor-sharp ride and point and shoot thrills

Back in 2016, when Trek first launched the Slash 29, you could count the number of long-travel big wheelers on 
one hand. Fast forward to today, and the race to be first at any EWS is consistently contested by the likes of Sam Hill and Richie Rude, both riding 29ers. So 29in wheels dominate racing at the highest level, but what has Trek done to guarantee that the latest Slash 29 is every bit as cutting edge as the original? What it hasn’t done is burn the house to the ground and start over. At first glance, the new bike looks a lot like the old one, but even after one ride, it’s clear that it’s a very different proposition. Yes, the OCLV Mountain carbon frame casts a similar shadow, but everything about this bike is different, from the sizing to the travel; even the Knock Block headset has been updated.

ABP suspension design with tweaked kinematics uses custom Thrushaft shock

Let’s start with travel. The old Slash 29 was a 150mm bike with a 160mm fork. The new version gets 10mm more travel at both ends. I measured vertical rear-wheel travel at 157mm so it can definitely be classed as a 160mm bike. The geometry is not quite as accurate though, as I measured the head angle on the new Slash at 63° in the low setting. That’s one-degree slacker than claimed. Not that I’m complaining, because the steering response feels neutral, and at no point did the bike feel too slack. In fact, I was taken aback when I measured the geometry for the first time and discovered that it was much slacker than it felt. The reach on the size large measured a generous, but not overly long, 475mm, but to get a better picture of the sizing we need to take a closer look at the wheelbase. With 1,273mm spanning the contact patches, the new Slash delivers a footprint that’s every bit as big and as stable as the S4 Specialized Enduro.

Down tube storage compartment specced throughout the range

Trek’s signature ABP suspension has also been tweaked. The progression rate and anti-squat have both increased and the Slash now gets a custom Thrushaft RockShox SuperDeluxe shock, with a choice of three compression settings in the open position and an easy-to-reach lockout. The idea being that you can tune the amount of low-speed support you need to match the terrain. In reality, the difference between the three settings is subtle, so I think most riders will leave it in the middle position and be done with it. In playing with the compression settings I did discover that the bypass for the lockout is really effective though, and you can still ride hard even if, like me, you sometimes forget to open up the shock for the descents .

Knock Block steering range has increased to 72°

One pet peeve with the old Slash was the slack 64.6° seat tube angle. Climb anything remotely steep and your weight ended up too rearward, loading the suspension and resulting in increased pedal strikes. To address this, Trek has steepened up the actual seat angle by one degree (actual measured geometry from both bikes). It doesn’t sound like a big change, but it is enough to give an effective seat angle of 75.5°, more than steep enough to winch up anything that I wouldn’t consider getting off to push up. Trek has also boosted the climbing prowess of the Slash by reworking the chainstay to accommodate a smaller 28t chainring. The bike ships stock with a 30t ring, and if you’re looking for more top-end speed, the biggest chainring the frame will accommodate is a 34t. With the expanded 10-52t range of the latest Eagle cassette however, I can’t see many riders needing a 28t ring on the Slash 9.9 X01. Still, it’s good to have it in your back pocket for big days in big mountains if the chairlift isn’t running.

10-52t Eagle cassette offers wide spread of gears

Other tweaks to the latest Slash see Trek dispense with the Straight Shot down tube and increase the range of the Knock Block steering lock from 58° to 72°, so you can now turn on a dime. The updated frame layout also gives you the option to remove the Knock Block entirely, but if you’re racing I still think it’s a worthwhile safety mechanism, as it should stop cables getting ripped out in a crash.

160mm-travel RockShox SuperDeluxe shock with three compression settings

One of my favourite updates to the Trek Slash 9.9 is the addition of down tube storage, first introduced on the Trek Fuel EX . Best of all, it’s also on the aluminium models further down the Slash range. In an interesting move, Trek has shunned the tube-within-tube design for its internal cable routing, the door in the down tube making it pretty easy to run the cables though the frame and out to the stays. I’m not sure it’s a good move though, as there’s quite a bit of cable rattle. Stuffing an inner tube and some snacks into the down tube quietened it down a bit, but all of the cables on our test bike were really long, and constantly rattled against each other. Fingers crossed, shortening the cables will be enough to improve the acoustics on this otherwise silent ride.

How it rides

I’m always suspicious of any enduro bike that pedals as well as the new Trek Slash 9.9. Sure, they tend to feel amazing when pootling along on your local trails, then you take it somewhere fast, rough and demanding, only to discover the shortcomings in the suspension within the first few turns. Thankfully, the new Trek Slash isn’t one such bike.

Yes, you can still be as precise as a fine-tipped pen when you need to be on a specific line, but the Trek Slash 9.9 also allows you to paint in broad brush strokes, so you can ride with reckless abandon and let your creative juices flow on any canvas. It’s what makes the Slash such an easy bike to ride, and to ride fast. It also makes it very versatile. While bikes like the Specialized Enduro Elite feel a lot like downhill rigs, the Slash is more manageable and maneuverable, without forcing you to tip-toe down the toughest trails. Both bikes share similar geometry, but Trek’s shorter reach actually gives you more wiggle room, not less. And if that sounds counterintuitive, it is. I think it’s because really long front ends tend to pull you into a more fixed riding position, but with the 475mm reach on the size large Slash you can move your weight around more freely simply by bending or extending your arms. This also makes it easier to load the front tyre on flatter trails. Yes, it’s about choosing your battles, so what the Trek loses in raw, straight-line speed it more than makes up for in agility, while still managing to advance the new Slash 29 on all other fronts.

Could the BB height on the Slash 29 be a hair lower? Sure it could, as I never so much as kissed a pedal on the ground, even with 175mm crankarms and the MinoLink in the low geometry setting. Did it slow the Slash 29 down any? Not one jot.

New 2024 Trek Slash 9.9 XO AXS first ride review – A new evolutionary stage of high pivot bikes?

The new 2024 Trek Slash is right on trend: high pivot rear suspension, mullet wheel set-up, generous amounts of travel and plenty of adjustment options. Furthermore, it combines both familiar and newly developed features that are meant to simplify your riding experience. After six weeks of testing on both sides of the pond, we were able to gather countless impressions, both good and not so good.

The Slash has been an integral part of Trek’s portfolio for over 10 years, and is now entering its 6th generation. The most significant innovation is the new rear suspension, which relies on a high pivot design and generates a very generous amount of travel, bringing the Slash in line with the latest generation of enduro bikes. Up until now, Trek have only used the high pivot system on their downhill bike, the Session, which nevertheless allowed them to gather lots of practical experience with the system and use their World Cup riders’ feedback to develop the new enduro rig. The new Slash generates 170 mm of travel both front and rear, and rolls out of the factory sporting a mullet. An interchangeable shock mount, however, allows you to convert it to a full 29er. As usual, Trek are releasing both an alloy and a carbon version of the new Slash, both of which are available in several different spec variants. We’ve already put the new Trek Slash 9.9 XO AXS 2024 through the wringer over a 6 month period, dipping its tires both into Canadian and European soil to gather some exciting insights.

The detail solutions of the new 2024 Trek Slash

The predecessor of the 2024 Trek Slash already came with a practical storage compartment integrated into the down tube, which Trek has updated for the latest Slash iteration. The opening is much bigger, making it easier to reach all the trail essentials you store inside it. Moreover, the edges of the compartment are still framed with a plastic liner, preventing you from cutting your fingers or damaging the contents when you pull them out of the compartment. The alloy frame has a storage compartment too and all models come standard with a small pouch for all your trail essentials, which can be easily pulled out of the frame using the bright red Cordura tab. The closure system relies on a simple lever that disappears under the bottle cage when engaged, and is easy to operate even while wearing gloves. The cables of the new Slash are routed internally and only reappear briefly at the transition from the main frame and swingarm. The cable ports are in a rather unusual position, sitting prominently on the front of the head tube – this look takes some getting used to! In combination with a wireless drivetrain, Trek close the cable ports with small rubber plugs.

There’s an additional tool mount underneath the top tube, which allows you to carry a spare inner tube or a tool strap, for example. In typical Trek fashion, the new Session comes standard with an integrated Bontrager BITS mini tool in the steerer tube, which includes all of the basic tools required for essential trailside repairs. That said, removing the tool from the steerer tube requires strong fingers and, as usual, the lever of the closing mechanism rattles on the trail. Trek also hide a 6 mm Allen key in the rear thru-axle.

For model year 2024, Trek provided the Slash with several protective features, all of which are meant to preserve the bike’s value. Amongst them is the generously sized integrated mudguard, which is bolted directly to the seat stay and is meant to protect the seat tube from stray rocks. Unfortunately, this has to be removed if you want to swap the 27.5” rear wheel for a bigger 29″ rear wheel. Furthermore, the down tube comes standard with a pair of dual-density TPU plates, which allow you to replace the inner section if it gets damaged. In addition, the frame comes with an additional protective layer under the final finish. Trek also redeveloped the chainstay protector from the ground up, raising both the inner and outer edges to prevent chain slap more effectively – and this really works, ensuring a quiet ride on the trail.

The high-pivot rear suspension of the new 2024 Trek Slash

While the new 2024 Trek Slash 2024 still relies on the same linkage-driven single pivot rear suspension, it combines it with a high pivot point design. This positions the main pivot point well above the chainring, allowing the rear wheel to swing up and backwards during an impact. This rearward axle path can help to make the suspension feel smoother over square-edged hits, ironing out roots and rocks more efficiently. However, the system also has its drawbacks: as the axle moves rearwards through the travel, the distance between the cassette and chainring grows, resulting in wheelbase and chainstay growth. This pulls the chain backwards, manifesting in high levels of pedal kickback and resulting in an imbalanced weight distribution of the rider on the bike throughout the travel. To counteract this, a chain idler pulley is fitted on the seat tube, which helps minimise pedal kickback and also gives high-pivot bikes their characteristic look. This also allows the engineers to fine tune the bike’s anti-squat and anti-rise levels independently simply by moving the position of the idler pulley. The unusually big 19T idler pulley is meant to mitigate the negative effect that the high pivot system has on pedalling efficiency, because the bigger pulley has a wider radius. Furthermore, Trek use a small chain guide to prevent the chain from falling off the idler.

The new 2024 Slash also features an additional pulley below the chainstay, which isn’t that common with high pivot bikes. This special pulley also includes an MRP bash guard and can be retrofitted to other high pivot bikes. Its job is to prevent the chain from stretching under the chainstay and thus to stop it from pulling on the rear derailleur. That said, even with the biggest XL frame, the chain runs at a sharp angle in the lowest gears, as the distance between the rear derailleur cage and the idler pulley is very small. While this didn’t cause us any problems on the trail, we’re not sure how good this is, both for pedalling efficiency and the chain’s service life. Speaking of the chain, with all frame sizes up to L, you’ll get away with a conventional 126-link chain. The new Slash in XL, however, requires 128 links, meaning that you need two chains.

The new 2024 Slash still relies on Trek’s proprietary Active Breaking Pivot or ABP technology, which can be found on most of their full suspension bikes and is designed to keep the rear suspension active even under heavy braking, helping to maintain traction.

The spec of our test bike – The Trek 2024 Slash 9.9 XO AXS

Our Trek Slash test bike comes equipped with Rockshox Ultimate suspension consisting of a 170 mm ZEB Charger 3.0 fork with independently adjustable low- and high-speed compression damping, and a brand- new Vivid Ultimate air shock , which offers externally adjustable compression and rebound settings as well as a climb switch. Unlike the Super Deluxe, the new Vivid relies on a high-volume air chamber and Rockshox’s new proprietary Touchdown damper. Unlike the rest of the Trek range, the Slash doesn’t use a Thru Shaft damper, which comes standard with most of their full-suspension bikes and is developed specifically for Trek.

As the name extension suggests, the 2024 Trek Slash 9.9 XO AXS employs a new electronic SRAM X0 Eagle Transmission drivetrain. The rear derailleur mounts directly to the thru-axle and worked flawlessly throughout our test. SRAM also supply the wireless, electronic Reverb AXS dropper post, but this only offers a meagre 170 mm of travel, which is far too little for a modern enduro bike. However, there isn’t a longer-travel version of the Reverb AXS dropper, so we recommend swapping the standard dropper for a cable-operated model if needed. Given the seat tube’s generous insertion depth, you could even push a 240 mm OneUp Components V2 dropper post all the way into the frame of a Slash in size L. Needless to say, the brand-new drivetrain is complemented with SRAM’s four-piston Code Stealth Silver brakes, which, just like the old RSC model, feature tool-free lever reach and bite point adjustments as well as SRAM’s proprietary SwingLink lever for optimal modulation. Compared to the Stealth Ultimate flagship model, the Silver variant only forgoes the carbon levers, tipping the scales at just 8 g more. Due to the new design, the brake lines run parallel and close to the handlebars, which ensures a cleaner look but can cause the cables to rattle – this can be easily fixed with a couple of additional clamps or zip ties ;) The brakes are paired with 200 mm rotors front and rear, which suit the Slash’s character and field of application rather well! For more oomph, you can can upgrade to 220 mm rotors both front and rear, because both the frame and fork are approved for it.

For the rest of the spec, Trek rely on their in-house component brand Bontrager, including a Bontrager Line Pro 30 carbon wheelset, which didn’t survive the testing sessions unscathed, with several spokes snapping after just 3 weeks of deployment. In addition, the rims are paired with flimsy, puncture-prone tires, which force you to run higher air pressure to avoid burping and snake bites. We recommend upgrading the standard Bontrager SE6 and SE5 tires for more robust tires before you start riding. In this test, we swapped to tires with a tougher DH casing after just a few laps. For the cockpit, Trek rely on an 820 mm Bontrager RSL one-piece handlebar/stem unit, which might look fancy but doesn’t allow for fine tuning except for the stem height, which can be changed using spacers. On top of that, the handlebars are very stiff and get even stiffer if you shorten them, like we did! With such a potent enduro bike, an adjustable cockpit makes more sense because it allows you to adapt the front end ergonomics to your anatomy. With the standard spec, our 2024 Trek Slash 9.9 XO AXS test bike in size L tips the scales at 15.7 kg.

Trek Slash 9.9 X0 AXS 2024

Specifications.

Fork RockShox ZEB Ultimate 170 mm Rear Shock RockShox Vivid Ultimate 170 mm Seatpost RockShox Reverb AXS 170 mm Brakes SRAM CODE Silver 200/200 mm Drivetrain SRAM Eagle Transmission X0 1x12 Stem Bontrager RSL 35 mm Handlebar Bontrager RSL 820 mm Wheelset Bontrager Line Pro 30 29"/27.5" Tires Bontrager SE6 Team Issue/ Bontrager SE5 Team Issue 2.5"/2.4"

Technical Data

Size S M M/L L XL

Specific Features

storage compartment Flip Chip Toolmount

More spec variants of the 2024 Trek Slash

As already mentioned, the new 2024 Trek Slash is available both with an alloy and carbon frame. That said, none of the alloy versions comes with a high-end spec, meaning that you have to order the frame kit if you want to combine an aluminium frame with top-tier suspension, for example. Prices for complete builds range between € 4,499 and € 12,499, and the bikes should be already available from all official Trek dealers. The American manufacturer also lets you test ride their bikes in one of their “Test-a-Trek Centres”. Starting today, you can test the new Slash in Lenzerheide, Saalbach and Sölden.

The alloy version of the new Slash is available in two spec variants. The entry-level Slash 8 XT model comes equipped with a FOX 36 Rhythm fork and a hybrid Shimano XT/SLX drivetrain. Shimano also supply the four-piston Deore M6100 brakes. The Slash 9 GX relies on higher quality RockShox Select+ suspension and SRAM’s new electronic GX Transmission drivetrain, with matching SRAM Code Bronze four-piston brakes. The Slash 9.8 GX combines the same identical spec with a carbon frame.

The flagship Slash 9.9 XX model comes equipped with electronic RockShox Flight Attendant suspension, electronic SRAM XX Transmission drivetrain and wireless RockShox Reverb seatpost. The rest of the spec consists exclusively of top-tier components and plenty of carbon bling. However, all the fancy components come at a price – an eye watering € 12,499! However, Trek have released a total of 5 carbon variants, offering a suitable option for all sorts of wallets.

The geometry of the new 2024 Trek Slash

The new Trek Slash 2024 will be available in 5 sizes, S to XL, and there’s also an intermediate size called M/L. All models in size S feature a curved top tube and 27.5″ wheels front and rear. From size M onwards, the new Slash rolls on a mixed wheel setup with a 29″ wheel at the front and smaller 27.5″ wheel at the rear. However, from size M upwards you can also use a 29″ rear wheel using a different shock mount, but this has to be bought separately and isn’t included in the frameset. The optional shock mount comes with a flip chip that allows you to change the progression of the rear suspension from 20% to 25%, which is intended for coil shock conversions.

Trek deliver the new Slash with three different headset cups, which allow you to change the head angle by up to 1.5°. Of course, by altering the head angle you’ll also change the reach, bottom bracket height and stack height. The new Slash comes standard in the neutral setting. When swapping the cups, however, the lower one has to be installed with a bearing press, meaning that you can’t just quickly swap cups on the trailside. In the neutral setting, the Slash has a 63.3° head angle, which can be changed to either 62.6° or 64.1°. In addition, Trek forgo their usual Knock Block with the new Slash, which means that you don’t have a steering stop limiter.

The position of the bottom bracket allows engineers to achieve different chainstay lengths by using the same rear end, whereby sizes M/L and L share the same values. Simply put, all frame sizes share the same identical swingarm but rely on a slightly different bottom bracket position to allow for the size-specific effective chainstay length. The advantage of this system is that you can easily replace the rear end in case of damage.In size L, the Slash combines 488 mm reach with a short 435 mm seat tube, which offers a generous insertion depth for long-travel dropper posts. The seat tube is short across all sizes, ensuring sufficient freedom of movement on the trail.

The geometry of the new 2024 Trek Slash in the neutral setting

The new 2024 Trek Slash 9.9 XO AXS on the trail

For this review, we were able to ride the new Trek Slash 9.9 XO AXS 2024 in both size L and XL. We tested the bike over the course of several weeks, putting it through the wringer on the legendary trails of Whistler, Squamish and Della Creek, both on bike park trails and natural trails – and also managed to squeeze in a few laps with freeride legend Andrew Shandro. We also rode the new Slash (in size L) on our home trails around Stuttgart and on some techy Alpine gnar in Switzerland. Testing the new Slash in different frame sizes and countless locations gave us the opportunity to gather plenty of impressions.

Needless to say, an aggressive enduro bike won’t earn you any uphill KOMs, and yet the new 2024 Trek Slash 2024 gets you to the trailhead without too much effort. The rear suspension only bobs slightly and generates plenty of traction on technical climbs, meaning that you can easily make your way to the top of the mountain without reaching for the Vivid’s climb switch. On steeper climbs, the front wheel remains planted on the ground, ensuring excellent steering precision. While on the first test laps the bike was totally quiet, with the idler pulley working discreetly in the background, this changed after a few days, with an increasingly loud rattling noise accompanying us on every climb.

When gravity takes over, the first thing you’ll notice is the high front end and deeply integrated riding position. This inspires huge amounts of confidence, even on the gruellingly steep Canadian trails. The Slash makes you feel at ease from the get-go, encouraging you to keep your fingers off the brakes after just a few corners. If you do brake – which is inevitable from time to time – the rear suspension generates tons of traction without stiffening up excessively if you hit a large bump while decelerating. The wheelbase of the Slash grows noticeably less than with other high pivot bikes, remaining agile and playful even when fully compressed. Overall, the rear suspension provides plenty of support, allowing you to pop off ledges and kickers while at the same time offering enough reserves to cope with botched landings.

The new Slash has direct handling and reacts to steering input quickly and precisely. During this test, we swapped the original wheels and handlebars for alloy models, which helped mitigate the very direct ride feeling, ensuring more forgiving handling in slippery conditions. Even in open corners, the Trek sticks to the chosen line with great composure and doesn’t require you to actively weight the front wheel – and that’s despite the high front end! As a result, you’re always in a central riding position, which conveys huge amounts of confidence in all situations. Overall, the Trek makes you feel as if you had more travel on tap and at the same time is just as agile and playful as bikes with less travel. Trek also seem to have successfully addressed the typical drawbacks of high pivot bikes, like the sluggish handling and unbalanced suspension performance, which can result from the growing wheelbase.

Who should take a closer look at the new 2024 Trek Slash?

The new Trek Slash is aimed at trail rippers, enduro racers, park rats and anyone who likes to get rowdy on gnarly trails. Provided you perform a few basic upgrades, like more robust tires and a tuneable cockpit, the new Slash offers a pretty sweet overall package – we’re pretty chuffed with it ourselves. Even on slower, narrower trails, it’s refreshingly nimble, while the excellent suspension allows you to generate speed by pumping through flow trails, which isn’t always a given with high pivot bikes. In our humble opinion, the Trek Slash 2024 is the next evolutionary stage of high pivot bikes, bringing all the advantages of a high pivot suspension design while at the same time eliminating most of its drawbacks.

Our conclusions about the new 2024 Trek Slash

The new Trek Slash 2024 offers agile, balanced handling and combines it with all the positive traits of a high pivot suspension design, ensuring excellent composure and a plush ride. If you like to open the taps on gnarly enduro trails, we recommend upgrading a few components. This will allow you to boost the Slash’s trail performance enormously with relatively little effort and at a reasonable price. The new Slash slaps a huge smile on your face, whether you’re going for a quick post-work ride on your home trails, racing enduro in the Alps or lapping park tracks – and also makes a great companion for the occasional flowing trail.

• Integrated, confidence inspiring riding position
• Combines excellent composure and agility
• Potent suspension provides plenty of pop and reserves
• Practical features like the integrated storage compartment and mini-tool

• Spec has some blemishes
• Idler pulley grinds lightly when pedalling uphill

For more info, visit Trek’s website.

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Words: Peter Walker Photos: Sterling Lorence, Peter Walker

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About the author.

Peter Walker

As editor-in-chief, Peter is as much a man of action as he is of words. This expert, screw-driver-flexing two wheeled-whizz has many envy-inducing characteristics, including a background in motocross, several EWS race plates to his name, and more than 150 recorded days at Whistler Bike Park. However complex the bike and however steep the trail, he’s probably already nailed it, twice. Oh, and he can do it all on skinny tyres too. When it comes to guiding consumers, Peter cut his teeth at Vancouver’s oldest bike shop and now puts pen to paper on the daily translating this know-how into our editorial plan. When not tearing up Stuttgart’s local trails while testing bikes, he loves nothing more than loading up his self-renovated VW T5 and hitting the road. The fact that he’s a trained paramedic gives his colleagues reassurance out on the trails. So far we haven’t had to call him by his alias ‘Sani Peter’, so here’s hoping he keeps it right side up for the rest of his time here!

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Saratov: The city that almost came up overnight

The downtown with church in evening beams of the sun. Source: Shutterstock / Legion-Media

Once one of the Russian Empire’s largest cities, Saratov is home to a conservatory, one of Russia’s most famous and oldest circuses and perhaps the finest art collection in provincial Russia. Throw in long pedestrian avenues, the legacy of the Volga Germans and the mighty Volga River and you start to see the fuller picture of this city that was literally built over night.

Saratov is a great place to feel the immense grandeur of the Volga River. Saratov offers an unusual collection of architecture from the pre-revolutionary and Soviet period and its large center makes for an excellent place to take an aimless walk through centuries of Russian history literally living on top of each other.

The city which was built over night

Ukek, a Golden Horde city, was situated nearby until Tamerlane destroyed it in 1395. Saratov was founded in 1590 and soon became a popular stop between Europe and Asia. Located 858 kilometers southeast of Moscow, it was one of three lower Volga cities founded as forts to protect recently acquired territories at the Empire’s edge over a five-year span (1586-1590), along with present day Volgograd and Samara. Saratov was actually constructed significantly north of the city. The wooden buildings were disassembled, sent downstream and erected quickly allowing Saratov to appear practically overnight.

A view of Saratov from the Volga river. Source: Lori/Legion-Media

By the early 1800s Saratov had grown to be a significant port city and the railroad arrived in 1870. The city experienced a boom during World War II as many factories and institutes were relocated here, although it was closed during Soviet times as it was the site of a military aircraft manufacturing plant.

Saratov and neighboring city Engels (combined metro area today of over one million) were home to hundreds of thousands of Germans in the 18  th  , 19  th  and early 20  th  centuries. Originally invited by the Tsars to spur agricultural development in the area, the Volga Germans went on to hold prominent regional roles. Many were deported to Central Asia and Siberia during World War II, with many of those that remained immigrating to Germany in the 1980s. 

The bridge between Saratov and Engels. Source: Lori/Legion-Media

The bridge connecting Saratov with its twin city across the Volga, Engels, was the longest in the Soviet Union when completed in 1965 at 2,826 meters long. The architecture is quite diverse on the Volga waterfront with luxury apartments mingling with log cabins. Make sure to see the Balneological Clinic for an example of an old sanatorium. There are numerous cafes along the river, as well as a pedestrian zone. From the River Port at St. Naberezhnaya Kosmonavtov 7a it is possible to take a cruise as far south as Astrakhan, as far north as St. Petersburg and all major cities on the Volga River, as well as Moscow. Cruises operate from early May until mid-September and a schedule can be found here:  rech-vokzal.ru .

The evening city of Saratov with the bridge through the Volga River. Source: Shutterstock/Legion-Media

Surprisingly, Saratov went three full centuries before a promenade was built along the river. One of the main attractions here is a statue dedicated to the first man in space, Yuri Gagarin. Gagarin first moved to Saratov to continue his studies in 1951 at the Saratov Industrial Technical School. He studied tractors and spent his weekends volunteering at a local aviation club where he learned to fly. He also worked part time on the Volga docks. 

A walk through the city center

The city’s main artery is Moskovskaya St., which leads from the Volga through the heart of the city, however, Saratov’s soul can be found on Prospekt Kirova, one of Russia’s first pedestrian zones. Until 1917 it was known as Nemetskaya St. in honor of the large German population. Many sights are located here, as well as dozens of bars and restaurants. Several statues dot the landscape including a bronze statue of an accordion player and one of a young man waiting for his love with flowers as inspired by this  song about Saratov .

The oldest balneological clinic in Saratov. Source: Lori/Legion-Media

The Leonid Sobinov State Conservatory  opened in 1912 at Kirova 1 not far from the entrance to the charming Park Lipki. At the time it was only the third in the country as Saratov was then the third largest city in Russia and the largest on the Volga (16  th  largest today).

The Nikitin Bothers Circus  at the top of Kirova (away from the Volga) was the second stationary circus in Russia (the first is in Penza). This is probably the best place in town to see tigers and clowns under the same roof. Across the street is the Kryty Rynok, a covered market built in 1916. Behind the market is an example of a classic Soviet movie palace, Pobeda; it opened in 1955. If walking away from the circus towards the Volga there are well-preserved examples of proletarian communal buildings constructed in the 1920s on the left.

The building of the Saratov State Art Museum named after Alexander Radishchev. Source: Shutterstock/Legion-Media

Also of note on the street is the cinema Pioneer at Kirova 11. It was previously a Catholic Church serving the German population. Partially destroyed during the Soviet period, a fragment of the original wall can be seen inside.

One block parallel to Kirova is Teatralnaya Square. Here is the  Saratov Academic Theater of Opera and Ballet , built in 1875. Across the square is  Radishchev Museum , featuring one of the finest art collections in provincial Russia. Named for the controversial 18  th  century writer who grew up nearby (and whose grandson provided the initial collection), this was the first art museum in Russia to open its doors to the public. Today it counts numerous famous Russian painters in its collections including works by Repin, Shishkin and Falk.

The bridge out of the past to the future

Monument to Chernyshevsky and conservatory in the city center of Saratov. Source: Shutterstock/Legion-Media

One of the city’s most famous residents is Nikolai Chernyshevsky (1828-1889). A socialist, philosopher and writer, he is best known for his 1863 utopian novel, “What is to be Done?” It tells the story of Vera Pavlovna, an emancipated woman and the ascetic revolutionary Rakhmetov, who sleeps on nails and eats raw steak. The book had an enormous influence on Lenin; today the main public university is named for him and  his museum  is located at Chernyshevskogo St. 142.

Park Pobedy is the city’s largest and is located at about three kilometers from the Volga. It hosts the National Village of the Peoples of Saratov Region, an open-air architectural and ethnographic museum. 

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Privolzhsky, Saratov Oblast

Privolzhsky is an urban locality in Engelssky District of Saratov Oblast, Russia. Population: 34,364; 32,087; 28,910.

More information and contact

Wikipedia https://en.wikipedia.org/wiki/Privolzhsky,_Saratov_Oblast

Coordinates 51°24'11.718" N 46°2'50.233" E

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Frank was set up as an independent Lutheran parish in 1768 and the pastor was resident there.

Frank, a German Lutheran colony, was until October 1918 the Township center of the Frank Township, Atkarsk Region, Saratov Province, 110 versts from the city of Saratov and 94 versts south of the county town of Atkarsk.  Frank was founded as a Crown colony on 16 May 1767 by 117 families from Mecklenburg, Palatinate, Saxony and Darmstadt-Isenburg.  In an edict dated 26 February 1768, Frank was given the Russian name of Medeveditskii Krestovyi Buyerak because of where it was located on the river.

As of 1859, there were in Frank a Lutheran church (built in 1842), a parochial school, a market, 3 oil producing factories and one mill.

Colonists from Frank helped to found the daughter colonies of Brunnental in 1855 and Langenfeld in 1859.  In 1859, 120 colonists moved to the Samara Province on the Wiesenseite.

A Regional government school was founded in 1871 with both governmental and private funds.  Books and other supplies were provided by the government.  Tuition has been set so that all can afford to attend: full payment 11-14 rubles; only 6 rubles for the poor.

*Of whom 5,072 are German. **Of which 643 households were German. ***Of whom 5,288 (2,561 male & 2,727 female) were German living in 832 households. ****Of whom 5,467 were German.

Beratz, Gottieb. The German colonies on the Lower Volga, their origin and early development: a memorial for the 150th anniversary of the arrival of the first German settlers on the Volga, 29 June 1764 . Translated by Adam Giesinger (Lincoln, NE: American Historical Society of Germans from Russia, 1991): 349.

Diesendorf, V.F. Die Deutschen Russlands : Siedlungen und Siedlungsgebiete : Lexicon. Moscow, 2006.

The German Settlements in the USSR before 1941 [in Russian] (Moscow, 2002): 125.

Mink, A.N. Historical and Geographical Dictionary of the Saratov Province [in Russian] (Saratov, Russia, 1898).

Orlov, Gregorii. Report of Conditions of Settlements on the Volga to Catherine II , 14 February 1769.

Pallas, P.S. Reise durch verschiedene Provinzen des Russischen Reichs. Theil 3,2, Reise aus Sibirien zurueck an die Wolga im 1773sten Jahr (St. Petersburg: Kaiserl. Academie der Wissenschaften, 1776): 623.

Pleve, Igor R. The German Colonies on the Volga: The Second Half of the Eighteenth Century , translated by Richard Rye (Lincoln, NE: American Historical Society of Germans from Russia, 2001): 318.

Schnurr, Joseph, Die Kirchen und das Religiöse Leben der Russlanddeutschen - Evangelischer Teil (Stuttgart: Landsmannschaft der Deutschen aus Russland, 1972): 344.

"Settlements in the 1897 Census." Journal of the American Historical Society of Germans from Russia (Winter, 1990): 18.

Frank and Kolb, Russia (Kelly Horst)

History of the Village Frank (Clarence Kissler)

Frank (wolgadeutsche.net) - in Russian

Frank-Kolb Facebook Page (Maggie Hein)

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