57mm Tire Clearance Meets Aero Tech

Today, the third-generation Canyon Grail launches with build options at the CFR, CF SLX, and CF price points, and this bike is bringing all the goodies. Rather than focus exclusively on either aero or weight, the new Grail offers a frame weight of 989g at the CFR level, alongside a claim of less aerodynamic drag than a Cervélo Áspero-5 or Factor Ostro Gravel. Canyon also claims that with a 40mm tire, the new bike is 5.7 watts faster at 35 km/h compared to the old bike.

The real news, though, is not aero claims at 40mm. The second-generation bike was only able to fit a max of 42mm, but this time, the third-gen frame will clear a 57mm tire. Even more impressively, Canyon claims the new bike running a 55mm tire is 2.1 watts faster (again at 35 km/h) compared to the old bike running a 40mm tire. That’s big and if you lean more on the geometry side of things, that massive clearance is paired with a 435mm chainstay and a 71.5-degree head tube angle (on sizes S-L).

Getting a 57mm tire to fit

In 2026, a gravel bike that doesn’t fit at least a 50mm tire is a non-starter, but sticking right at that 50mm mark rarely keeps people happy. Canyon tells this story through the lens of sponsored athlete Rosa Klöser, who made it incredibly clear that 50mm was simply not enough.

This push for volume is expected in modern gravel, but accommodating huge tires often ends up dominating the design and personality of a bike. While some companies manage clearance as an option with design compromises, Canyon reached for 2.25-inch clearance at the direct expense of 2x compatibility.

Moving to a 1x-only platform wasn’t enough on its own. To create more room, Canyon altered the geometry, lengthening the chainstays to 435mm and extending the overall wheelbase by 10mm. This adds high-speed stability, but it doesn’t fully solve the tight pinch point where the tire, crank, and chainstays fight for space.

To solve this, Canyon had to rethink chainstay construction. Similar to what we saw in the latest Factor Elara launch, Canyon had to squeeze the chainstay width. Factor went with a true monocoque to make that work while the Canyon team instead designed a solid driveside chainstay.

The final piece of the puzzle is the bottom bracket. The rear tire dictated a wide rear end, so Canyon stuck with the PF86 standard. While many brands are shifting back to threaded bottom brackets, Canyon argues that the wider PF86 shell not only creates the necessary room for the tires but also delivers a stiffer pedaling platform.

Weight vs aero

Pushing a gravel bike to clear a 57mm tire usually comes with a penalty. You need more material, a wider stance, and a reinforced bottom bracket area, which generally pushes frame weights well over the 1,100g mark. Canyon, however, managed to implement a solid driveside chainstay and a wide PF86 bottom bracket shell while keeping the top-tier CFR frame at just 989g. For a bike engineered to handle 2.25-inch rubber, that is a competitive number, and complete builds are quoted as being as light as the Grail CFR AXS build at 7.9kg.

Canyon didn’t leave this as a lightweight-only bike, though; the engineering expertise in the carbon is matched with aero claims. Notably, those aero claims don’t come with a 45 km/h tag applied to them. Instead, Canyon optimized the tube shapes for a more realistic gravel race pace of 35 km/h. You’ve already seen that Canyon claims impressive numbers, but it’s important to understand just how impressive those numbers are based on the speed. Typically, a brand would be thrilled to see 5.7 watts of aero improvement even at 45 km/h. For this launch, Canyon is claiming that wind tunnel testing shows the Gen 3 Grail running a 40mm tire is 5.7 watts faster at 35 km/h than the Gen 2 bike on the exact same tires. But the really impressive number is that the new bike is claimed to be faster even with a 15mm wider rear tire. If the claims are true, you get the grip, the comfort, and the capability, without paying an aerodynamic tax.

New gravel wheels

With big tire clearance dictating the frame design, the wheel choice becomes incredibly important. Canyon is using the Gen 3 Grail launch as an opportunity to introduce a new carbon wheelset, the GR 50 CF. The rims feature a progressive 27mm internal width paired with a 38.5mm external width. Interestingly, while other brands have gone to a wider internal width in the last few years, Canyon has stayed conservative and is blaming the ETRTO. It’s a bit of a PR stretch, but it is technically true: 27mm is the maximum internal width ETRTO allows if you still want blanket compatibility with the 35mm end of Canyon’s suggested 35-60mm tire range.

Regardless of that, the build relies on 50mm deep rims laced to DT Swiss 350 hubs with DT Swiss Aerocomp II spokes. That combination yields a claimed weight of 1,675 grams for the taped pair with a microspline freehub installed. Canyon also throws in a spare XD-R freehub body—a practical touch for home wrenchers that keeps you from getting locked into a single drivetrain ecosystem down the line. On the aero side, the brand benchmarked the GR 50 CF against the narrower DT Swiss GRC 1400, claiming these wider rims maintain competitive drag numbers without sacrificing handling stability. You’ll find them as stock equipment on the Grail CF 7 AXS and Grail CF SLX 7 Di2 builds, or aftermarket for €999.

Geometry changes

Canyon claims the brand was incredibly happy with how the previous bike handled. For the third generation, the 71.5-degree head tube angle and 69mm trail across the core sizes haven’t changed. There is an extra 10mm on the wheelbase to fit the rubber, but the brand did not feel that the change was detrimental to the overall handling of the bike.

The bigger shift in the chassis, though, is how Canyon reshaped the rider’s cockpit position. Frame reach stays extended (411 mm on a Medium), intended to pair with shorter stems like the stock 80 mm setup. But responding to how aggressively gravel fields are being ridden, Canyon knocked 15 mm of stack out of the frame across the board, pulling the Medium down to 575 mm.

To dial that lower front end, Canyon brought its modular PACE cockpit system over to the Grail CFR and CF SLX models. This is an integrated unit but adjustable in a way nothing else is. The CP0048 bar gives you 50 mm of width adjustment across the hoods (370, 395, and 420 mm) alongside 20 mm of steerer height tuning—offering 15 fit positions with just a T25 wrench. You never have to trim a steerer or disconnect hydraulic lines, and the drops themselves are also modular. Canyon specs its new gravel-specific Control Drops as standard, giving you a 17-degree flare and 120 mm drop. However, the wider ecosystem includes Classic, Race, and Compact drop options as well. Swapping between these shapes is what allows you to tweak the effective reach by ±10 mm.

Staying comfortable over long rough gravel

Gravel racing is often long and always rough. That means carrying your own tools and nutrition, and Canyon has partnered with the bikepacking brand Cyclite to develop a custom frame and top tube bag. The system looks very similar to the Apidura Aero frame bags, and the zero aerodynamic penalty in the wind claim is similar as well. The advantage here is that these bags are unique to this bike, so there are no straps of any kind, and a push-to-release mount system is even easier than standard bolts. In addition, Canyon also integrated its LOAD Down Tube storage system into the frame. This is a system that comes from the Endurace platform, though it’s worth noting it isn’t included on the base CF models.

On the comfort side of things, the seatpost from the Endurace has also been brought across. The SP0093 VCLS Aero seatpost claims to offer 25 percent more compliance than a standard rigid aero post. More importantly from a fitting perspective, the post is engineered to deflect consistently regardless of how much exposure you run. Whether your fit requires maximum or minimum seatpost extension, you get the same engineered damping.

What is far less user-friendly is the mounting system for that nice adjustable bar. As with all one-piece bar/stem systems, you are at the mercy of the manufacturer for a quality out-front mount. Canyon has the Gear Groove system to accommodate this, and you can even add the “super solid, highly adjustable aero extension that transform this bike into an ultra-endurance machine.” At least as long as your ultra-endurance needs also include only a single 800-lumen light with run times of 200lm for 4.5 hours, 400lm for 2.3 hours, or 800lm for 1.5 hours. Out of the box, you also can’t run both the light and the aero extensions simultaneously. It seems best to keep your races to a single day or make sure you check what is available in the aftermarket before purchase.

Pricing and availability

All the third-generation Canyon Grail options are available today via the Canyon website. Additionally, in European/EMEA markets, Canyon is rolling out a custom build program for the CFR tier. Buyers there can spec alternative wheels like the Zipp 303 XPLR SW or Scope Artech 4G, pick stem lengths and bar drop profiles (including the CP0053 RACE Bar), and choose from four additional custom artwork colorways.