The New Canyon Grail Fits 2.25-Inch Tires Without an Aero Penalty

Canyon's third-generation Grail clears 57mm tires while claiming to be faster aerodynamically than the previous bike on 40mm rubber. That's not a typo. The brand says the new frame with a 55mm tire is 2.1 watts quicker at 35 km/h than the old Grail running 40s. If those wind tunnel numbers hold up on actual gravel roads, Canyon may have solved the eternal clearance-versus-aero tradeoff that's plagued every gravel race bike to date.

The engineering compromises tell you where the priorities landed. To fit 2.25-inch rubber, Canyon went 1x-only—no front derailleur compatibility at all. The chainstays stretch to 435mm across all seven sizes, adding 10mm to the wheelbase for high-speed stability but requiring a redesigned solid driveside chainstay to squeeze past the rear tire. Canyon also stuck with PF86 bottom brackets while much of the industry moves back to threaded shells, arguing the wider shell creates both tire clearance and a stiffer pedaling platform. Whether you buy that reasoning probably depends on how many creaky press-fit bikes you've owned.

For the data-obsessed: the CFR frame hits 989 grams despite all that tire accommodation, and the top build comes in at 7.9 kg with SRAM RED XPLR AXS and a Quarq dual-sided power meter. The geometry holds a 71.5-degree head tube angle and 69mm trail across the S-L size range, but Canyon dropped 15mm of stack across the board to push riders into more aggressive positions. The modular PACE cockpit on CFR and CF SLX models lets you adjust bar width (370/395/420mm) and steerer height without touching hydraulic lines—useful if your fit needs evolve or you're sharing the bike.

The new GR 50 CF wheelset runs a conservative 27mm internal width at 50mm depth, claiming 1,675 grams for the pair with DT Swiss 350 hubs. Canyon includes a spare XD-R freehub body, which is a small practical touch that saves you from drivetrain lock-in down the road. Pricing spans $3,499 for the mechanical Shimano GRX build up to $8,999 for the full CFR AXS package with power meter.

This bike makes the most sense for riders who actually race gravel or want race-geometry capability without sacrificing tire volume for rough mixed-surface events. If you primarily do mellow gravel exploration or need 2x gearing for hilly road-to-trail routes, the Grizl (Canyon's adventure-oriented sibling) remains the better fit. The Grail is now a committed race tool that happens to fit monster tires—exactly what the Unbound-chasing crowd has been asking for.