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The 2023 Trek Domane is now official: SL, SLR, and RSL options explained

The endurance road bike returns to its endurance road purpose..

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Trek hasn’t exactly been shy about the fact a new Domane was imminent. We saw the endurance-come-all-road bike earlier in the year at the Classics, and Elisa Longo Borghini even rode it to victory at Paris-Roubaix Femmes. 

Now Trek has lifted the translucent curtain from the new bike, revealing all the finer details and model options. We have the new Domane SLR in hand for review but we need a little more time on it before we can offer an informed opinion. In the meantime, here’s what we know about the newly updated endurance road platform that consists of the Domane SL, the top-tier Domane SLR, and the return of a pro-friendly Domane RSL.

Simpler = lighter 

In many ways, the new Domane returns to the roots of the endurance road platform. When it was first released a little over a decade ago, the Domane was a fully-fledged road bike, just with added ride comfort and more relaxed geometry. A subtly modified version was Fabian Cancellara’s pick for conquering the cobbles, and Trek surely sold a lot of bikes off that imagery. 

However, more recent years have seen the Domane get increasingly more complicated, and that complexity came with added mass. For example, Trek took its original IsoSpeed concept from a simple flexible seat tube decoupled at the top tube via a bearing-based pivot and turned it into a system (at least at the high-end) that split the seat tube around a sliding mechanism that allowed you to tune the seated comfort. Meanwhile, the once ordinary front-end of the bike earned a de-coupled headset that allowed the fork steerer to flex more freely.

All impressive features, but also things that made the Domane heavier than a bike of its price should be.  

And so we come to the newest version of the Domane. This bike waves goodbye to both the adjustable rear IsoSpeed and front IsoSpeed and instead moves to Trek’s fourth iteration of the comfort-inducing feature. Similar to the original introduced in 2012, this new and rear-only IsoSpeed isn’t adjustable and the only moving components are isolated to the pivot point that sits between the seat tube and top tube. 

The reasons to walk away from front IsoSpeed are closely related to what was seen with the latest Checkpoint gravel bike . It comes down to modern tyre technology and trends toward going wider in volume. The front IsoSpeed is said to have been beneficial when tyres were 28 mm in size and run at high pressures but is too stiff to make an appreciable difference with a wider-volume tyre system, such as the 32 mm tubeless tyres supplied with the bikes.  

Meanwhile, Trek has claimed that the return to its top tube-based IsoSpeed is more effective across the full-size range versus the previous seat tube-based IsoSpeed, which was unintentionally stiffer in smaller sizes. That non-adjustable flex is now said to match the most comfortable setting of the previous generation and is size-specific in the compliance provided.  

What’s new is that Trek has moved away from its almost signature upside-down seatpost topper or post-within-a-post designs, and instead adopted its own telescoping D-shaped carbon post. Securing it is a binder wedge that’s integrated with the new IsoSpeed system. The binder is hidden beneath a magnetic cover plate and is designed to work with common pre-set 5-5.2 Nm torque wrenches (or any style of torque wrench). Meanwhile, the proprietary carbon seatpost is being produced in two different set-back versions. 

With fewer moving parts the new Domane SL and SLR framesets are approximately 300 grams lighter than before. Additionally, the new SLR version is the lightest Domane Disc yet. Trek quotes 56 cm framesets for the Domane SL (OCLV 500-series carbon) and Domane SLR (OCLV 800-series carbon) at 2,500 g and 1,700 g, respectively. However, precisely what those framesets include is somewhat unclear. Add in some refined Bontrager wheels and the formerly porky base-level Domane SL5 complete bike is now a claimed 700 g lighter – although it’ll still sit above 9 kg with pedals. 

The two tiers of Domane share the same moulds and are therefore visually and feature-wise identical. The weight difference is merely down to the Domane SL using a lower modulus “OCLV 500-series” carbon fibre lay-up. In contrast, the Domane SLR uses Trek’s high-modulus “OCLV 800-series” blend (the highest grade of carbon used in the Domane to date) that carries quite the premium pricing. Trek’s entry-level aluminium endurance road bike, the Domane AL – a bike we reviewed in 2021 – remains unchanged. 

Not unlike what we’ve seen with other bikes in this category, Trek claims improved aerodynamic performance through features already seen with its Emonda , including revised Kammtail (aka truncated airfoil) shaping and an integrated-ish cockpit with semi-concealed cable routing. That cockpit consists of a two-piece handlebar and stem, where the brake hoses and mechanical gear cables (if applicable) are routed outside of the bar and underneath the new RCS Pro stem, which features a removable cover. The cables/hoses then flow into Trek’s proprietary headset spacers/top cap before being fed through the top headset bearing. And while it’ll look less seamless, the system allows regular stems and handlebars to be used. 

Spanning a generous range, the nine available frame sizes point to the popularity of this platform. The Domane SL and SLR keep with Trek’s ‘endurance’ geometry which offers shortened reaches and raised stacks compared to its race-focussed Emonda and Madone offerings. Steering geometry remains on the quicker side for the endurance road category, while the wheelbase is a tad longer than some. 

Still ready for all-road use

Trek claims the new Domane is a “road first” platform, but simultaneously talks to its versatility provided by the class-leading 38 mm tyre clearance. That massive tyre clearance remains unchanged from the previous generation and is based on a 6 mm window all the way around the tyre. The figure is based on what Trek considers to be the largest 38 mm-measured tyre width on the market, so there’s plenty of tolerance in here to go bigger than what is officially recommended. All Domane complete bikes come stock with 32 mm tyres. 

If I had a way to bang a gong and shout this news, I would. The new Domane spells the end of Trek’s BB90 press-fit system, and the American company’s entire road range now features a threaded bottom bracket. Like we’ve seen with the Madone and Emonda, the Domane uses Trek’s take on the T47 ‘internal’ threaded bottom bracket, one that has open compatibility with all aftermarket T47 bottom brackets and modern crank spindle systems. 

Like previous generations, the hidden fender mounts remain, and using those allows for up to a 35 mm tyre to be fitted. Also continuing over is the down tube storage hatch that hides beneath the bidon cage. Within it you’ll find the same tool and tube wrap. Meanwhile, the mounts for a top-tube feed bag remain, too. Another minor and overlooked detail is Trek’s integrated 3S chain keeper which works admirably well. 

The RSL, a return of the pro version

Go back to the days of Fabian Cancellara skipping across the cobbles and you’ll find that his Domane wasn’t like the one you’d find in your local Trek store. Rather it was a Race Shop Limited (RSL) version from Trek’s Project One range. Sold only in the sizes needed by the key riders of WorldTour team, this pro version combined a race-specific geometry with the wider tyre clearance and smoother frame that the Domane sought to offer. Now Trek has brought the pro version back as a frameset-only option in the form of the Domane RSL. 

While the regular Domane SL and SLR come in a choice of nine sizes, the RSL version is offered in just five sizes spanning from 52 through to 60 cm. Those five sizes feature Trek’s H1.5 fit which offers more aggressive stack and reach figures in line with its Emonda and Madone bikes. Meanwhile, steeper head angles result in super short trail figures that should equate to a quicker steering characteristic. 

There are a few other differences that expand beyond the geometry. Pro riders tend to push bigger gears and the RSL version is designed to clear up to 54/40T rings, or a 54T if run 1x. By comparison, the Domane SL/SLR will only fit a maximum of 52/36T gearing or a 50T single ring. That chainring clearance comes with the trade-off of reduced tyre clearance, with the RSL designed to fit up to 35 mm rubber. And while the SL/SLR framesets can use either electronic or mechanical groupsets, the RSL is electronic-only. 

Made with racing in mind, the Domane RSL also drops the down tube storage hatch, the top tube bag mounts, and the fender compatibility. As a result, it’s approximately 100 g lighter than the SLR version. 

Models and pricing 

There are many complete bike options within the new Domane SL and SLR ranges. Excluding the top-tier SLR 9 eTap (which has Trek-Segafredo team look-a-like Pirelli tyres), all models come equipped with tubeless-ready wheels (hooked bead), Bontrager R3 32 mm tubeless-ready tyres, and tubeless valves and sealant are also provided. 

The premium-priced SLR starts with the expected Shimano Dura-Ace Di2 and SRAM Red AXS options, and goes down to models with new Shimano 105 Di2 and SRAM Rival AXS. There are five stock frame colours choices shared amongst the SLR bikes and framesets. A frameset is also available for US$4,200 / €5,000 / £4,500 / AU$NA. 

Meanwhile, the lower-cost Domane SL frame is available at the base level with Shimano 105 mechanical, and goes up to models with either Shimano Ultegra Di2 or SRAM Force AXS. And being cheaper doesn’t mean any less choice in paint, with options spanning from boring through to sparkle-drenched. And somewhat unexpectedly, Trek will offer the Domane SL as a bare frameset for US$2,500 / €3,000 / £2,700 / AU$NA.

And as already mentioned, the pro-edition RSL is available only as a frameset, priced at US$4,200 / €5,000 / £4,500 / AU$5,600.

Review to come 

CyclingTips’s head of tech, James Huang, recently received a new Domane SLR for test, and I plan on borrowing one in October. You can expect a deep-dive review on this new endurance road bike in the coming months. 

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Trek’s Best Road Bike Ever Is the Third-Generation Domane SLR

Smooth, fast, and smart: The new Domane is everything a modern road bike should be.

The Takeaway: Higher performance, more features, more versatile: The third generation Domane is one of the best road bikes you can buy right now.

• Clearance for up to 38mm tires
• Internal storage system
• Improved aerodynamics save 12 watts
• 27 percent more compliant than the previous model

Price: $7,800 Weight: 18.9 lb. (54cm)

The third generation of Trek’s Domane is not just the best Domane, it is Trek’s best-ever road bike. And one of the best road bikes on the market right now.

Few bikes offer what the Domane SLR does: a bike that’s equal parts performance, comfort, practicality, and versatility. It’s more aerodynamic than the outgoing Domane (saving 12 watts at 4oKph) and takes at least a 38mm tire, and it has hidden fender mounts and sleek internal storage.

It has compliance-enhancing decouplers front and rear that work very well to improve both rider comfort and control, and that don’t detract from the bike’s pedaling efficiency or handling. The steering is light, and its handling precise, but with a mellower edge and more stability than a road-racing bike. That helps make it one of the best bikes on which to descend roads, as well as a capable all-road and light-gravel bike.

Style Road, All Road Material Carbon Tire clearance 38mm Drivetrain Shimano Ultegra Di2 Chainrings 34/50 Cassette 11-32 Brakes Shimano Ultegra Hydraulic Disc Wheels Bontrager Aeolus Pro 3v, tubeless ready, 25mm internal width Tires Bontrager 32 Hard-Case Lite, 32mm Handlebar Bontrager Pro IsoCore VR-CF Stem Bontrager Pro Saddle Bontrager Arvada

It is what a modern road bike should be: fast, crisp, useful, adaptable, and rider-friendly. The 32mm tires come stock on all but one model, a decision I couldn’t applaud more. Fat tires rule because they’re less prone to flats, can go more places, and don’t require you to dodge every groove and hole in the road. Not only do they ride smoother, Trek says its testing indicates they’re faster at speeds under 20mph (over 20 and the aero penalty takes over).

It is a touch heavy—it gains about 100 grams compared to the outgoing version—though it doesn’t ride that way. And it’s such a good and well-done bike, the extra weight seems worth it.

Trek Domane SLR 7

But if you’re a gram counter, know that the long-term review bike—a $7,800 Domane SLR 7 with Ultegra Di2 Carbon wheels and carbon handlebar—weighed just a touch under 19 pounds. That means the lower-end bikes will weigh even more. This new third-generation bike comes in 10 models priced from $2,300 to over $11k, plus the option to customize build and finish in Trek’s Project One program.

This is the bike most of us should ride. It’s entertainingly sharp and sporty, smooth, smart, and versatile enough for most forms of road riding—paved or gravel. And that’s why it’s one of the best bikes you can buy right now and why we chose it as the best bike of 2020.

Custom Options

There are 10 stock Domane models, but you can also customize in Trek’s Project One.

Big Clearance

The Domane officially fits 38mm tires. Unofficially, you can squeeze in 40s.

Now With Threads

The Domane uses a threaded T47 bottom bracket.

Flexy Tongue

The compliance of the rear IsoSpeed system is adjustable.

Burrito Carrier

Fit a repair kit and more inside the Domane’s down tube.

The 2020 Domane is the third generation of Trek’s venerable endurance—and race—frame. Jordan Roessingh, Trek’s global director or road product calls it “Our most versatile performance road bike ever,” which is the kind of thing you’d expect a person in his position to say. But it’s hard to argue with him when you look over the Domane’s details.

This system is up to 27 percent more compliant than the one found on the second-generation Domane, with a rubber elastomer providing damping to tame unwanted bounce. Compliance is pegged to frame size—larger bikes get stiffer IsoSpeed tongues, smaller bikes have softer tongues. Lower-grade Domane SL models continue to use the seat-tube adjustable IsoSpeed system from generation-two Domane models. This system does not have the size-specific tune or the damper.

The new Domane still uses Trek’s modified seatmast system—though the cap now fits inside the seat tube instead of over—with an internal binder for a sleeker look. The mast top comes in several lengths and two offsets.

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Most gen-three Domane models ship with 32mm tires. Bigger tires are more comfortable and offer better grip. And for most recreational riders, Roessingh says the 32mm tires are faster. According to Trek’s testing, says Roessingh, at speeds under 20mph, a 32mm is faster because it has less rolling resistance than a narrower tire. However, when speeds creep over 20mph, the aerodynamic hit of the bigger tire becomes a factor and begins to swamp the rolling resistance advantage of a wider tire.

The Domane can fit up to a 38mm tire with 4mm of clearance on all sides. That means you can shoehorn in a bigger tire—perhaps up to 40mm—though with less debris clearance. Like earlier versions, the new Domane has hidden fender mounts; with fenders, up to 35mm tires may be fitted.

Trek’s engineering elves managed to add a bit of free speed to the Domane by adding some aerodynamic features. Compared to the previous-generation frame, and with the same build, the new Domane saves about 12 watts at 40Kph (good for about one minute of time savings per hour). The aero gains are due to refined tube shapes, as well as new hose and housing routing.

The hose and housing routing is smart. The Domane’s front IsoSpeed system prevents Trek from stuffing hoses and housing along the fork steerer, a solution many other bikes employ. On the Domane, they enter the frame behind the headset, directed there by a simple hoop that clips into the faceplate of the bike’s Bontrager stem. The Domane is compatible with any bar and any stem, though only Bontrager stems work with the hose and housing hoop.

The Domane is the first bike to launch with Trek’s new internal storage system. It’s the same concept as Specialized’s SWAT box : Remove the panel under the bottle cage to access the inside of the down tube. Included with the bike is a cloth-covered organizer roll with spots for a tube, tire lever, Co2 cartridge, and inflator head. You can fit the organizer roll and a bit more—a few bars or gels, for example—though the amount of space varies with frame size. You can expect to see this system on more Trek models in the future.

Another new feature is a modified T47 bottom bracket system. Trek narrowed the width of the Domane’s BB shell by one millimeter (compared to the T47’s written standard) then added thicker flanges (a half millimeter on either side) to the BB itself. This gives the T47’s installation tool more material to bite on. Frankly, it’s a good modification: The standard T47 BB’s have very thin flanges and it’s easy to slip a tool when trying to install or remove one of the bottom brackets. Trek’s modification does not affect the system’s compatibility with cranks or bottom brackets.

Though an all-new frame in most ways, mainline Domane models carry forward the same endurance geometry. Through Trek’s Project One customization program, you can order a lower stack and longer-reach geometry that Trek calls H1.5.

The Domane Family

The new Domane line consists of 10 stock models priced from $2,400 to $11,299. All models have carbon frames and use disc brakes. If the stock builds don’t suit your needs, the new Domane is also in Trek’s Project One customizable-build-and-paint program. You can also purchase Domane frameset for $3,300.

There are two frame levels: SL with Trek’s 500-series carbon and SLR with 700-series carbon. SLR models get all the new features and are lighter. Lower-grade Domane SL models continue to use the seat-tube-adjustable IsoSpeed system from second-generation Domane models: This system does not have the size-specific tune or the damper.

Only SLR models get Bontrager’s IsoCore carbon bar which features a layer of vibration-damping material in the carbon. However, all models get IsoZone gel pads under the bar tape.

Following a growing trend, Trek did away with women’s-specific geometry and model designations in the new Domane line. Instead, the company added more sizes, more builds, and more color options to its mainline Domane models. So while Trek’s Domane WSD models go away, representatives argue that all riders get more options than before.

Some of the build adjustments from its women’s-specific models—shorter-reach and narrower bars, shorter stems, and shorter-reach brake levers—were incorporated into smaller sizes. The only thing not found in this new scheme are models that come stock with a women’s saddle. Buyers will need to work with their Trek retailer to get a saddle that suits their anatomy. I hope Trek retailers will swap for an equal-level Bontrager saddle at no charge.

Ride Impressions

I attended the Domane launch in Italy, where I had the opportunity to ride only a customized version of the Domane. Though it is possible to build the bike I rode through Project One (the price of the bike I rode would be approximately $11,600), it was not a mainline model with a stock build.

The day after Trek launched the new Domane, I received a Domane SLR 7 ($7,800 with black/silver finish) for long-term review. This model has Shimano Ultegra Di2 drivetrain (34/50 rings with 11-34 cassette) and brakes, Bontrager’s Aeolus Pro 3V tubeless-ready wheels, 32mm Bontrager R3 Hard-Case Lite tires, and a Bontrager IsoCore carbon bar.

On my scale, the Domane SLR 7 weighed 18.9 pounds (54cm). That’s not light for a nearly $8,000 carbon road bike in 2019. For comparison, my Cannondale SuperSix Evo Hi-Mod Disc Ultegra Di2 ($7,750) review bike weighs 17.1 pounds (54cm) with similar build, and a power meter. The Domane SLR 9 with the 28mm tires, higher-end wheels, and top-of-the-line drivetrain will be lighter than my review bike. But almost all other 2020 Domane models will likely weigh about 19 pounds or more.

The Domane has a lot of stuff going on; it’s the most feature-rich performance road bike you can buy right now. But adding stuff adds weight. Adding performance—aerodynamics, and compliance—can add weight. “The new [Domane] SLR and SL frames both gained about 100g when all the frame and hardware (IsoSpeed included) are rolled up,” said Roessingh.

But given how obsessive cyclists are about weight—despite constant reminders that weight isn’t a major influence on performance in most situations—if a brand is going to add weight, it better damn well pay off.

Based on my impressions of the Domane so far—ride and otherwise—it does. The weight is not a concern. Most important, it doesn’t ride heavy. The bike is quick and fast feeling; extremely stiff at the bottom bracket, with light and precise steering. On the steepest grades, yeah… it’s not as crisp and ethereal as a 13-pound climbing bike , but then it doesn’t feel like a 19-pound bike either. Before I knew its weight, I had it in my head that it weighed around 17.5 pounds—a typical weight for a bike with an Ultegra Di2 disc group.

But more significantly, the amount of time I spend on the type of grades where its weight might be noticeable or impactful is tiny. I suspect it’s the same for most riders who aren’t in the pro peloton.

And what you get for a bit of extra weight is Trek’s best road bike, and one of the best road, and more, bikes you can buy.

This is a stiff, quick, and high-performance bike. The steering is light and communicative, though not as fast as the typical road-racing bike. But the Domane also has a lot of BB drop (about 78mm, almost a centimeter more than a typical road bike), a bit longer chainstays (420mm), and a slightly stretched wheelbase. All of that gives it supreme stability.

On top of the geometry are the IsoSpeed decouplers, which not only add comfort to the rider but also help the rider stay centered on the bike and not bounced off line by bumps. And then there are the floaty and sticky 32mm tires. Friends, the Domane has been a great bike to descend with, but this new model puts it on a whole new plain. It descends like an anvil dropped from the ISS.

As much as I love to go downhill, I’m only a good, not great, descender on the road. But I’ve never felt more confident on the descents or had as much fun descending as I have on the Domane. Its limits are very high, but it’s also very communicative and very confidence-inspiring.

So, it rides great. But it’s also extremely smart and versatile.

I loved the SWAT box when Specialized launched it, and I love it here. It’s more, and more elegant, storage for your tools and spares and food. However, I have some worries about the integrity of the door. With a full bottle in the cage, there’s a concerning amount of flex and wobble in the door (Specialized’s doors are rock solid). I wonder how this will play out with tolerance drifts, and over the long haul. How will it hold up after a year of pounding? Time will tell, I suppose. And as much as it wobbled and flexed, it held firm and makes no noise. Trek’s representatives say they’ve tested the snot out of the system and its passed with flying colors. I hope it proves so reliable in the real world.

I also love the tire clearance. Swap the tires, and this is a good all-road or even gravel bike. Frankly, I think a lot of gravel bikes are over heavy and over slow. But a good set of mid-width gravel tires on this Domane and it’s a cracking machine for all but the most gnarly gravel roads. Put lighter skinnier tires on it, and it’s going to be a fast road bike (watch those pedals in the corners—the BB is LOW with smaller tires). I love that blend of road-race performance with all-road versatility.

I also love that the new Domane has aero touches (because improved aerodynamics are one of the few things that legitimately make you faster), that it doesn’t use a stupid or annoying proprietary bar and stem system, has fender mounts, and that Trek was able to give this bike so many features, and they made it look good.

Yes, it is a bit less sharp than a pure road-racing bike, and it might be a bit heavy, but then so am I. The Domane is a blend of versatility, practicality, and performance that no other bike currently offers. It’s the kind of bike we could all use in our life.

A gear editor for his entire career, Matt’s journey to becoming a leading cycling tech journalist started in 1995, and he’s been at it ever since; likely riding more cycling equipment than anyone on the planet along the way. Previous to his time with Bicycling , Matt worked in bike shops as a service manager, mechanic, and sales person. Based in Durango, Colorado, he enjoys riding and testing any and all kinds of bikes, so you’re just as likely to see him on a road bike dressed in Lycra at a Tuesday night worlds ride as you are to find him dressed in a full face helmet and pads riding a bike park on an enduro bike. He doesn’t race often, but he’s game for anything; having entered road races, criteriums, trials competitions, dual slalom, downhill races, enduros, stage races, short track, time trials, and gran fondos. Next up on his to-do list: a multi day bikepacking trip, and an e-bike race. 

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• Rider Notes

2023 Trek Domane SLR Frameset

A carbon frame endurance frameset with modest components.

Manufacturer Price

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5'2" – 5'5"

5'3" – 5'7"

5'5" – 5'9"

5'8" – 6'0"

5'10" – 6'2"

6'0" – 6'4"

6'2" – 6'5"

• 6'0", size 56cm, Just right

Feb 2024 · Dave Rome

Trek’s most budget road bike, revamped, and still with class-leading tyre clearance.

Room for 40 mm tyres has this one ready for the gravel-curious. Solid build kit and frame will shrug off loaded commuting and mixed surfaces. Ready for fenders and a rack. Welcoming geometry and comfortable touch points.

Disc brakes make for a heavy bike

And the mechanical disc brakes here aren’t stellar. Heavy wheels and tyres make the bike feel more sluggish than it wants to be. Through-headset cable routing makes no sense on a bike with mechanical gears and brakes. Ultimately cheap gearing and brakes for a bike that

While Trek’s entry-level

Isn’t as affordable as it should be.

Read Review

Now on its fourth iteration, the Trek Domane AL is packed with updates, a lighter frame, and room for larger tires.

Sep 2023 · Calvin Zajac

Can the Trek Domane SLR 7 AXS Gen 4 prove to be the ultimate all-road bike and adventure buddy in our 2023 all-road group test?

Coherent and versatile concept

Very comfortable thanks to the inconspicuously integrated IsoSpeed system

Timeless look that you won’t get tired of looking at

Internally routed cables rattle loudly

Feb 2023 · James Huang

Trek’s latest iteration of its Domane all-roader packs more performance than ever, but there are also some big missteps that give me pause.

Superb rear-end ride quality, stiff and efficient-feeling under power, excellent handling, sleek aesthetics, competitively weight.

Ride quality still a little imbalanced, creaky IsoSpeed/seatpost area, exposed headset bearing, internal housing rub, disappointing tires.

Jan 2023 · Josh Croxton

Fewer Isospeeds means it's a little less comfortable, but the new Domane SLR 9 is fast, fun, and ready for an adventure

Easy to use storage compartment with neat & organising tool wrap

Simplified Isospeed vibration damping

38mm tyre clearance

Power meter included

Neat, low-maintenance integrated cockpit

Oh boy is it pricey

I would hope for top-spec tyres at this price

Oct 2022 · James Spender

The Domane is a tremendously smooth bike thanks to Trek’s IsoSpeed rear damping system and high volume, 32mm tubeless tyres

Over-engineered

Sep 2022 · Warren Rossiter

The latest Domane is true to the original racer, yet massively versatile

Beautifully balanced handling

Smooth-rolling

Well equipped

Price compared to its rivals

Should have the range-topping tyres as standard

The new Domane is everything great about the old bike, plus lighter and quicker.

Last updated June 27 Not listed for 360 days

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At road.cc every product is thoroughly tested for as long as it takes to get a proper insight into how well it works. Our reviewers are experienced cyclists that we trust to be objective. While we strive to ensure that opinions expressed are backed up by facts, reviews are by their nature an informed opinion, not a definitive verdict. We don't intentionally try to break anything (except locks) but we do try to look for weak points in any design. The overall score is not just an average of the other scores: it reflects both a product's function and value – with value determined by how a product compares with items of similar spec, quality, and price.

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The Trek Domane SL is a smooth-riding road bike – even an all-road bike – courtesy of IsoSpeed tech both front and rear, which helps it damp down small vibrations and bigger hits. It's not the lightest bike out there, but if ride quality is your main concern, it's a real contender.

First of all, a quick explanation of the bike we're reviewing. The Domane SL frameset arrived at road.cc built up with the new SRAM Rival eTap AXS groupset so that we could review those components too. It's not a standard build, but we've not reviewed the Domane SL before and thought we'd take the opportunity.

> Buy now: Trek Domane SL Disc frameset from Trek for £2200.00

Our 58cm bike, complete with Zipp 303S wheels set up tubeless with WTB Exposure 700 x 30mm tyres, weighs 8.82kg (19.4lb).

Trek does offer the Domane SL 6 eTap with a SRAM Rival eTap AXS groupset for £4,200, although this model is fitted with Bontrager Paradigm Comp 25 wheels.

Okay, on with the show...

IsoSpeed is the headline news here, so let's kick off with what it actually is. You can scroll down a few paragraphs if this is old news for you.

Trek first introduced IsoSpeed in 2012, although it has evolved since then. Rear IsoSpeed came first, decoupling the top of the seat tube from the rest of the frame. The aim is to take the edge off big hits and smooth out smaller vibrations by allowing a small amount of movement at the saddle, thereby keeping you feeling fresher for longer. That's the plan.

How does it do it? Although the seat tube is fixed to the bottom bracket area in the normal way, it isn't moulded to the top tube or seatstays. Instead the tubes are joined by a pivot, allowing the seat tube to flex more than would otherwise be possible.

Front IsoSpeed is a more recent introduction, the idea being greater compliance at the handlebar. Front IsoSpeed comes in the form of a rocker cup at the top of the headset that allows the fork's carbon steerer to flex backwards/forwards, but not from side to side.

Put another way, the upper section of the headset can tilt to take advantage of the inherent flex in the steerer, meaning the stem and handlebar can move slightly in response to rough roads. See? It's simpler than it sounds.

Best of three

The Domane frameset comes in three different flavours. At the entry level there's the Domane AL, with an aluminium frame. This one doesn't feature front or rear IsoSpeed although, a little confusingly, Trek does describe the carbon fork as IsoSpeed on the basis that the legs are designed to absorb vibration. Complete bike prices start at £695, although the cheapest disc brake model is £895.

At the top of the range there's the posh Domane SLR, which comes with front and (adjustable) rear IsoSpeed. Bikes are priced from £6,600.

In the middle you get the Domane SL bikes, which are made from a lower grade of carbon than the SLRs – Trek's 500 Series OCLV, rather than lighter and stiffer 700 Series OCLV. You get both front and rear IsoSpeed, neither of which is adjustable. That means you can't alter the setup according to the terrain but, on the other hand, it's simpler.

> road.cc Frameset of the Year 2020/21

The most accessible 2022 complete SL currently available is the Domane SL 6 eTap mentioned above, although the 2021 Domane SL4, with a mostly Shimano Tiagra groupset, is £2,325.

On the road

So the big question is: how much difference does the IsoSpeed technology make? Don't think that all this tech means the Domane SL feels unlike any other road bike you've ever ridden.

First of all, if you've ridden mountain bikes with loads of travel, IsoSpeed is nothing like that. Not even on the same page. Cast all thoughts of mountain bike suspension from your mind.

When you're riding on level, well-surfaced tarmac, IsoSpeed doesn't feel unusual at all, and even over rough roads it's subtle. In some ways it feels like running wide tyres at fairly low pressures... though in other ways it doesn't feel at all like that (I'll explain in a mo).

You get just a bit of movement to insulate you from what's going on beneath your wheels, and it's more noticeable at the saddle than the handlebar. Crack into a steep-edged pothole at warp speed and you still feel it – just slightly less than you otherwise would.

The main feature, though, isn't the protection from the big hits, it's the smoothing you get from the smaller stuff: little holes, manhole covers, drains, frost damage, badly patched tarmac, kerbs on and off the cycle path... you know, all those things you constantly encounter on a typical ride.

It would come in handy over cobbles too, although chances are you don't have too many of those around your way.

Again, IsoSpeed doesn't eliminate bumps and vibrations from any of this stuff, it just turns it all down a few notches. It's forgiving. The rougher the surface, the bigger the difference IsoSpeed makes. It's great on old, scuffed up tarmac and it's also pretty active on gravel roads although, naturally, the tyres make a big difference here.

> 19 of the best 2021 gravel bikes & adventure road bikes

The Domane takes a maximum size of 700 x 38mm. It isn't designed as a gravel bike – and most people would prefer something a bit wider for full-on gravel – but it's brilliant for short cuts to link up two sections of tarmac, for instance, and if you fancy riding gravel on 38mm tyres, well, you can fill yer boots.

I said above that IsoSpeed can feel like you have large, low pressure tyres – but not entirely. The big difference is that a big tyre can feel squishy and mushy when you put the power down, and that can be annoying on the road.

IsoSpeed doesn't feel like that at all. There's no extra bounce when you're out of the saddle, and no additional lateral movement. The front end tracks and steers well, with no nasty surprises when you bang it hard into a fast, downhill bend.

Speaking of surprises, the frame-integrated storage compartment is a natty addition. You flick a lever on the down tube – where the bottle cage attaches – to release a plate and access the space inside.

The cover has a multi-tool slot on the back, and Trek also offers a tool roll specifically designed to fit. It takes stuff like a CO2 canister and chuck, tyre levers, a spare tube, an emergency Snickers bar... you do carry an emergency Snickers bar, don't you?

Specialized does something similar on its Diverge gravel bikes, and while packing things in these cubbyholes is a bit of an art, it's a really handy addition for emergency essentials.

The Domane SL is relaxed by road bike standards. Trek calls it an endurance fit. I've been riding the 58cm model with a 54.8cm seat tube, a 56.7cm effective top tube, and a 19.5cm head tube. It's a tall bike with a 61.1cm stack height, while the reach is short at 38.0cm. That puts the stack/reach at 1.61 for this size.

Some people are going love how the ride position is more upright than a more speed-orientated bike's, such as Trek's Madone or Emonda, for instance, while others won't be down with it at all. It depends what you're after.

Trek says the current generation Domane is much more aero than previously – courtesy of truncated airfoil tube profiles – but there's only so far you can tweak your position, and that's always going to be more significant when it comes to drag. Personally, I can't see typical Domane SL buyers being over-concerned with aerodynamics, although I guess it all helps.

The brake hoses are exposed only between the ends of the handlebar tape and the front end of the top tube, just behind the stem, where they duck inside via a removable plate. This ensures a clean look and keeps them out of the wind.

As mentioned, the bike I've been riding has a SRAM Rival eTap AXS groupset so there are no shift cables/wires to worry about anyway, but if there were any, this is the only place you'll see those too.

Other features you need to know about include the adjustable seat mast that's particular to the Domane – held by an internal clamp accessed via a slot in the extended seatpost – and the T47 bottom bracket. Hooray for threaded BBs!

Mudguards? You can fit 'em easily enough. You get threaded holes on the fork legs (filled with itty bitty grub screws when not required) and another beneath the fork crown. You get more at the bottom of the seatstays, and fairly discreet mountings for a chainstay/mudguard bridge towards the top.

The only real downside to the Domane SL is that it's not particularly light. Trek claims a frame weight of 1,365g while, as mentioned, this complete bike came in at 8.82kg (19.4lb). Okay, the SRAM Rival eTap AXS isn't a lightweight groupset, but then a few hundred grams on the frame doesn't affect the ride as much as some people would have you believe.

The money bit

There aren't many road bikes designed to smooth the ride quite like the Domane. The most obvious rival is the Specialized Roubaix, which has Future Shock front suspension – a spring in a cartridge above the head tube that allows movement of the stem and handlebar.

The top-end Specialized S-Works Roubaix Team frameset is £3,700, but comparing prices with the second-tier Domane SL is unfair. Trek's flagship Domane SLR frameset is £3,500, so there's not a great deal in it.

The Domane SL keeps you comfortable thanks to relaxed geometry, front and rear IsoSpeed tech, and the ability to take tyres up to a whopping (by road bike standards) 38mm wide. It's as versatile as it is smooth, and if you want to mix up the surfaces you ride on while retaining plenty of speed, the Domane SL is a strong option.

Smooth endurance bike with loads of tyre space and masses of versatility

road.cc test report

Make and model: Trek Domane SL Disc frameset

Size tested: 58cm

Tell us what the frameset is for, and who it's aimed at. What do the manufacturers say about it? How does that compare to your own feelings about the bike?

Trek says, "The lightweight Domane SL Disc Frame Set is built with 500 Series OCLV Carbon and includes road-smoothing Front and Rear IsoSpeed, so you can stay stronger for longer. This carbon endurance road frame is designed for flat-mount disc brakes, has a built-in storage compartment, and includes a headset and a Domane Disc full carbon fork."

Trek tells you everything you need to know about IsoSpeed over here: www.trekbikes.com/gb/en_GB/inside_trek/isospeed

Trek says, "IsoSpeed challenges the traditional design of a bicycle frame. Devoid of the more favoured approaches to the compliance quandary (such as suspension systems, elastomers or a vibration damper), IsoSpeed maintains the diamond-shaped frameset geometry but 'decouples" the seat tube from the top tube, allowing the seat tube to flex with the forces of the road. The result is a bike that moves with the road while maintaining the feel and efficiency of the traditional race bike design.

"One of the consistent pieces of feedback from riders that have enjoyed rear IsoSpeed was that even though they could plough unfazed through rougher roads than ever before, they could still feel the road shock through their arms from the front wheel. Our solution was to take everything that works from IsoSpeed and move it up the bike. The same technology that provides great compliance at the saddle now delivers compliance at the front end. Front IsoSpeed, located at the top of the headset, is captured in a rocker cup similar to rear IsoSpeed. This allows the steerer tube to flex, providing additional compliance at the front of the bike. The rocker cup of the upper steerer has zero lateral movement, allowing the bike to steer and handle with precision."

State the frame and fork material and method of construction

Frame: 500 Series OCLV Carbon, front and rear IsoSpeed, internal storage, tapered head tube, internal cable routing, 3S chain keeper, DuoTrap S-compatible, mudguard mounts, flat-mount disc, 142x12 mm thru-axle

Fork: Domane SL carbon, tapered carbon steerer, internal brake routing, mudguard mounts, flat-mount disc, 12x100 mm thru axle

Tell us about the build quality and finish of the frame and fork?

It's built to a very high standard.

Tell us about the geometry of the frame and fork?

Trek calls it an 'endurance fit,' and it's pretty relaxed by road bike standards. I've been riding the 58cm model with a 54.8cm seat tube, a 56.7cm effective top tube, and a 19.5cm head tube. It's a tall bike with a 61.1cm stack height, while the reach is short at 38.0cm. That puts the stack/reach at 1.61 for this size.

How was the bike in terms of height and reach? How did it compare to other bikes of the same stated size?

It's taller and shorter than an equivalent Madone or Emonda, say, putting you in a considerably more upright position.

Riding the bike

Was the bike comfortable to ride? Tell us how you felt about the ride quality.

Yeah, this is what the Domane is all about. It feels very comfortable courtesy of the front and rear IsoSpeed, and the ability to fit tyres up to 38mm wide. The relaxed geometry takes the strain off your back and neck, too.

Did the bike feel stiff in the right places? Did any part of the bike feel too stiff or too flexible?

The IsoSpeed tech allows up/down movement, but doesn't affect the lateral stiffness of the bike.

How did the bike transfer power? Did it feel efficient?

It feels pretty efficient, yes.

Was there any toe-clip overlap with the front wheel? If so was it a problem?

My shoe just missed 30mm tyres; there's a small amount of overlap with larger tyres.

How would you describe the steering? Was it lively neutral or unresponsive? It's pretty neutral

Tell us some more about the handling. How did the bike feel overall? Did it do particular things well or badly?

This is a bike that's more about stability and ride quality than sharp handling.

This isn't especially focused on accelerating or sprinting.

Your summary

How does the price compare to that of similar products in the market, including ones recently tested on road.cc?

The most obvious comparison is with the Specialized Roubaix, which has Future Shock front suspension – a spring in a cartridge above the head tube that allows movement of the stem and handlebar.

Did you enjoy riding the bike? Yes

Would you consider buying the bike? If ride quality was my highest priority, definitely

Would you recommend the bike to a friend? Yes

Use this box to explain your overall score

The performance is very good. Although the price is higher than many other road bikes, it's very good when you consider the tech that features here.

Overall rating: 8 /10

About the tester

Age: 48   Height: 190cm   Weight: 80kg

I usually ride:    My best bike is:

I've been riding for: Over 20 years   I ride: Most days   I would class myself as: Expert

I regularly do the following types of riding: commuting, club rides, sportives, general fitness riding,

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Mat has been in cycling media since 1996, on titles including BikeRadar, Total Bike, Total Mountain Bike, What Mountain Bike and Mountain Biking UK, and he has been editor of 220 Triathlon and Cycling Plus. Mat has been road.cc technical editor for over a decade, testing bikes, fettling the latest kit, and trying out the most up-to-the-minute clothing. He has won his category in Ironman UK 70.3 and finished on the podium in both marathons he has run. Mat is a Cambridge graduate who did a post-grad in magazine journalism, and he is a winner of the Cycling Media Award for Specialist Online Writer. Now over 50, he's riding road and gravel bikes most days for fun and fitness rather than training for competitions.

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£2,325 for a Tiagra equipped bike is having a laugh......

It's horses for courses. I had an SL5 disc with Vison 40mm carbon rims and 105 as standard a few years ago and tbh, it's a nice enough bike but I found it dull as dishwater...as did a couple of people I know who bought better and lesser versions of the same model year.

The person I sold mine to loved it however and boasted of smashing PB's. If you can I'd advise a test ride

How upright are we talking? Can you still stretch yourself out riding the drops?

SaintClarence27 wrote: How upright are we talking? Can you still stretch yourself out riding the drops?

More than likely, provided you get the correct size.

The only way to answer that is to sit on one. A decent substitute is to compare the geometry to a model you're familiar with.

It's certainly taller, but not that much shorter than an Emonda say.

I have both and they're setup within a couple of mm of each other

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Never wild camped per se in the UK but I stayed for a week in a cave in the Czech republic where all camping was forbidden where any smoke would be...

Tubulars maybe? They nor usually worth the bother of repairing.

Difficult to tease apart though - people do drive out to a destination "to get some air" / "take a break", where I might just go for a cycle. ...

I think I may understand where you're coming from here.  I remember my reaction years ago when some activists said "why ask for a narrow bike lane?...

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What what friend in Oxford have told me Oxford city coucil have done a good job with the LTNs, but needed to be a bit braver and put in more bus...

well that remains to be seen. It's pretty unlikely, becasue the only remaining charge is a misdemenaor; but it hasn't gone to trial yet....

And The Jag, especially the utterly ridiculous SUV ones...

Surely you mean Liz Truss' book?

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2021/2022 Trek Domane SLR Project One Frameset / Gen 3 / Endurance Fit / Disc Brake / BARE FRAME ONLY

2021/2022 Trek Domane SLR Project One Frameset / Gen 3 / Endurance Fit / Disc Brake / BARE FRAME ONLY is backordered and will ship as soon as it is back in stock.

Introducing the Domane SLR Disc Frameset: The Ultimate Foundation for Your Endurance Road Dream Bike

For those embarking on the journey to create their dream endurance road bike, the Domane SLR Disc Frameset is the starting point you've been seeking. Crafted from the lightest and most advanced 700 Series OCLV Carbon, this frameset offers a blend of speed and comfort, making it ideal for your longest days in the saddle.

Is It Right for You?

• If you're in the process of building your dream endurance road bike, prioritizing both quickness and comfort for those extended rides, and you want to begin with the pinnacle of lightweight and advanced OCLV Carbon, then this frameset is your answer.

Cutting-Edge Technology:

• Features an ultralight 700 Series OCLV Carbon frame with Front and Adjustable Rear IsoSpeed for a supremely smooth ride.
• Equipped with internal storage, internal cable routing, and fender mounts for versatility.
• Designed for flat-mount disc brakes and paired with a full carbon Domane Disc fork.

The Final Word Undoubtedly the best frameset for endurance road biking in our lineup. Not only does it boast ultralight 700 Series OCLV Carbon, but it also incorporates road-smoothing IsoSpeed technology, a feature unavailable on any other platform.

Why You'll Love It

• Customize the frame's compliance to your preference with a simple slider adjustment.
• This bike has earned victories in the world's most prestigious one-day Classics, including Paris-Roubaix and Flanders.
• Recognized as "Superbike of the Year" by Bikeradar, the Domane SLR platform is beloved by riders and experts alike.
• A concealed internal storage compartment offers a versatile space for your tools and gear.

Specifications:

• Frame: 700 Series OCLV Carbon, front IsoSpeed, adjustable rear IsoSpeed, internal storage, tapered head tube, internal cable routing, 3S chain keeper, DuoTrap S compatible, fender mounts, flat mount disc, 142x12mm thru axle.
• Fork: Domane SLR carbon, tapered carbon steerer, internal brake routing, fender mounts, flat mount disc, carbon dropouts, 12x100mm thru axle.
• Frame Fit: Endurance.
• Max Tire Size: 38mm.
• Front Derailleur: Mechanical front derailleurs must have a full-housing stop (example: Shimano toggle front derailleurs).
• Max Chainring Size: 1x: 46T, 2x: 52/36.
• Seatpost: Not included.
• Rotor Size: Max brake rotor sizes: 160mm front & rear.
• 56 - 2.24 kg / 4.94 lbs (frame-only, painted).

Weight Limit: This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 275 pounds (125 kg).

Please Note:

• This frameset is precisely as depicted in the pictures and does not include additional components required for a complete bike assembly.
• Excluded items: Hardware, grommets/cable stops, seatpost, axles, or headset.
• For expert advice on sourcing the necessary parts and accessories, we recommend consulting your local Trek dealer. Their expertise will help you select the right components based on your specific fit needs and groupset preferences, ensuring a successful and seamless bike build experience.

Warranty Assurance:

• This frame is an authentic Trek product, backed by a comprehensive factory warranty when assembled at an authorized Trek dealer.
• Keep the build invoice and proof of purchase for future reference in case of warranty claims.

Elevate your endurance road cycling experience with the Domane SLR Disc Frameset. Begin crafting your ultimate ride today!

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Great price fast shipping packaged well. No issue with product.

Great service, fast delivery. The frame has a few scratches on it, but I was able to rub them out. Fantastic price!!!

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Results have arrived, trek domane slr 52cm frameset - 2021, item #frd13173, condition: pre-owned used condition with signs of use but functions as intended. backed by tpc's risk-free return policy., fit range: 5'4.2" - 5'6.1" sizing guide.

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Endurance Race Machine

This generation brought BIG upgrades for the ever-popular cobble tamer, the Domane - and we're not just talking about the 38mm tire clearance, although that's one of our favorites! Ditch the saddle bag, because this sweet ride has down tube storage! A nifty storage compartment in the down-tube will store all the essentials needed to change a flat or whatever else you decide to shove in there. If you look at a prior generation Domane side by side to this one, you'll notice a complete redesign, and it's felt in the ride. Even more buttery smooth than prior gens and the 700 Series OCLV carbon (upgraded from 600 series on prior SLR) packs an impressive punch when throwing torque on the pedals.

• Includes: Frame, fork, headset, seatpost, and rear derailleur hanger
• Great condition
• Very light paint chips and very light wear from regular use (cable/tire rub, heel rub, chain, etc)

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"Trek’s best road bike gets faster, lighter, quicker, and better"

"When you get on a bike that is fast, quick, and communicative but also floats and coddles the rider like a newborn baby, well, that is a special bike. And that is what the new Domane is: Special. A great bike made better. A bike for the modern road rider: Freaking fast, wonderfully comfortable, and oh so practical."

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"The level of smoothness on the Domane continues to impress, creating an experience akin to being chauffered around in a luxury sedan. It absorbs all road vibrations, operates quietly, and accelerates on flats deceptively quickly…I'll be in for a rude awakening after returning to a road bike without IsoSpeed."

"Fast on all terrain"

"I took the Domane on my local gravel and some select chunky bits to see how it would fare. The most notable transition from road to gravel was the sense of ease. Usually, when you roll from tarmac to stones, the bike can feel skittish and nervous (rider or bike). The Domane feels stable, and instead of holding your breath, you breathe out."

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Trek Domane SLR Road Frameset

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Combining comfort and performance, the Trek Domane SLR Road Frameset has a 600 Series OCLV Carbon construction with a front and rear IsoSpeed decoupler.

Trek's endurance geometry and Power Transfer Construction maintains lasting comfort and maximum power. So, whether it be cobbles, dirt or sleek tarmac, don't just endure, conquer.

Blistering speed and enduring comfort, that is what the Trek Domane SLR Road Frameset provides. Powering Fabian Cancellara to his Strada Bianche title, this bike is built to lay down the power no matter what the terrain.

This versatility stems from the use of premium 600 Series OCLV Carbon and Trek's Power Transfer Construction. This allows you to get the most out of every pedal stroke by optimising the head tube/down tube, bracket/rear wheel connection.

At the front of the frame, the IsoSpeed decoupler sits just below the stem. This allows the stem to rotate individually from the fork and increases vertical compliance and riding comfort dramatically without affecting on feel or steering efficiency.

At the rear the IsoSpeed decoupler performs much the same function; allowing the seat tube to rotate independently from the top tube to seat stay junction. This increases vertical compliance without compromising pedalling efficiency. The rear IsoSpeed is also adjustable, allowing you to adjust the degree of compliance and stiffness.

The Domane Control Centre allows for easy access to a Di2 battery while the integrated 3S chain keeper allows for easy shifting. Full internal cable routing and vanishing mudguard mounts ensure a sleek and aerodynamic look.

Trek's no-cut Ride Tuned seatmast is designed for the rigours of pro racing and is the lightest solution for day-in, day out performance and comfort. Both the fork and rear stays allow for additional tyre clearance, fitting tyres up to 32mm in width; perfect for endurance-focused efforts over tough terrain.

Incredibly high power transfer is achieved through this frame

The front and adjustable rear IsoSpeed Decoupler provide the ultimate compliance to conquer the roughest roads

The ultra lightweight 600 OCLV Carbon frame lets you ride stronger, for longer

Additional tyre clearance provides versatility to go on or off the road

Please note: The Trek Round Seat Cap with 20mm offset is required, and purchased separately.

Technical Specification

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