2026 Trek Roscoe Gen 4 vs 2027 Canyon Grand Canyon AL
The L is the Canyon Grand Canyon AL size closest to your ML Trek Roscoe Gen 4. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Canyon Grand Canyon AL
Compared with the Trek Roscoe Gen 4 in ML, the Canyon Grand Canyon AL in L places the top of the head tube 8 mm lower and 15 mm further forward, relative to the bottom bracket. Its wheelbase is 6 mm longer, which can contribute to stability at speed.
- Frame stack
- −8 mm
- Lower front end
- Frame reach
- +15 mm
- Longer frame reach
- Wheelbase
- +6 mm
- Longer: steadier at speed
- Head angle
- +1.0°
- Steeper: sharper steering
- Chainstays
- +5 mm
- Longer: more planted
The two frames
Trek Roscoe Gen 4, MLCanyon Grand Canyon AL, LDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Trek Roscoe Gen 4 ML | Canyon Grand Canyon AL L | Difference |
|---|---|---|---|
| Reach | 455 | 470 | +15 mm |
| Stack | 648 | 640 | −8 mm |
| Head tube angle | 65 | 66 | +1.0° |
| Seat tube angle | 74.1 | 74.4 | +0.3° |
| Effective top tube | 614 | 641 | +27 mm |
| Chainstay length | 430 | 435 | +5 mm |
| Wheelbase | 1203 | 1209 | +6 mm |
| BB drop | 61 | 65 | +4 mm |
| BB height | 311 | not listed | |
| Standover | 740 | 784 | +44 mm |
| Seat tube length | 400 | 460 | +60 mm |
| Head tube length | 105 | 125 | +20 mm |
Differences are the Canyon Grand Canyon AL minus the Trek Roscoe Gen 4. Full charts: 2026 Trek Roscoe Gen 4, 2027 Canyon Grand Canyon AL.
Where each sits in its class
Trek Roscoe Gen 4Canyon Grand Canyon AL
Each bike is ranked against the other trail bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Trek Roscoe Gen 47 Gen 4 | Canyon Grand Canyon AL |
|---|---|---|
| Frame | Trek Roscoe | not listed |
| Fork | RockShox Recon Silver | not listed |
| Shifter | Shimano CUES U6000 | not listed |
| Derailleur | Shimano CUES U6000 GS | not listed |
| Cassette | Shimano LG300 | not listed |
| Chain | Shimano LG500 | not listed |
| Crankset | Shimano CUES U6000 | not listed |
| Chainring | Shimano 30t | not listed |
| Bottom bracket | Shimano MT501 | not listed |
| Pedals | VP 536 | not listed |
| Wheelset | Bontrager Line TLR 30 | not listed |
| Tire | Bontrager Gunnison Pro XR | not listed |
| Hub | Shimano TC500 | not listed |
| Rim | Bontrager Line TLR 30 | not listed |
| Brake | Shimano MT200 | not listed |
| Rotor | Shimano SM-RT10 | not listed |
| Handlebar | Bontrager Comp | not listed |
| Stem | Bontrager Comp | not listed |
| Grips | Trek Line | not listed |
| Headset | FSA Orbit | not listed |
| Dropper post | TranzX JD-YSI34 | not listed |
| Seatpost | TranzX JD-YSI34 | not listed |
| Saddle | Bontrager Verse P3 | not listed |
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