2026 Specialized Stumpjumper 15 EVO Alloy Comp SRAM 70, FOX Rhythm vs 2026 Trek Fuel MX Gen 7
The M is the Trek Fuel MX Gen 7 size closest to your S3 Specialized Stumpjumper 15 EVO Alloy Comp SRAM 70, FOX Rhythm. 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 Trek Fuel MX Gen 7
Compared with the Specialized Stumpjumper 15 EVO Alloy Comp SRAM 70, FOX Rhythm in S3, the Trek Fuel MX Gen 7 in M places the top of the head tube 3 mm lower and 11 mm further forward, relative to the bottom bracket. Its wheelbase is 11 mm longer, which can contribute to stability at speed.
- Frame stack
- −3 mm
- Lower front end
- Frame reach
- +11 mm
- Longer frame reach
- Wheelbase
- +11 mm
- Longer: steadier at speed
- Head angle
- +0.2°
- About the same head angle
- Chainstays
- −1 mm
- About the same
The two frames
We can't draw these frames yet. The Specialized Stumpjumper 15 EVO Alloy Comp SRAM 70, FOX Rhythm numbers we have for size S3 are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Specialized Stumpjumper 15 EVO Alloy Comp SRAM 70, FOX Rhythm S3 | Trek Fuel MX Gen 7 M | Difference |
|---|---|---|---|
| Reach | 445mm | 456 | +11 mm |
| Stack | 630mm | 627 | −3 mm |
| Head tube angle | 64° | 64.2° | +0.2° |
| Effective top tube | 596mm | 584 | −12 mm |
| Chainstay length | 435mm | 434 | −1 mm |
| Wheelbase | 1217mm | 1228 | +11 mm |
| BB drop | 35mm | 31 | −4 mm |
| BB height | 340mm | 343 | +3 mm |
| Standover | 745mm | 749 | +4 mm |
| Seat tube length | 405mm | 400 | −5 mm |
| Fork length | 573mm | not listed | |
| Head tube length | 110mm | 110 | ±0 mm |
| Seat tube angle | not listed | 77.5° |
Differences are the Trek Fuel MX Gen 7 minus the Specialized Stumpjumper 15 EVO Alloy Comp SRAM 70, FOX Rhythm. Full charts: 2026 Specialized Stumpjumper 15 EVO Alloy Comp SRAM 70, FOX Rhythm, 2026 Trek Fuel MX Gen 7.
Where each sits in its class
Specialized Stumpjumper 15 EVO Alloy Comp SRAM 70, FOX RhythmTrek Fuel MX Gen 7
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 | Specialized Stumpjumper 15 EVO Alloy Comp SRAM 70, FOX RhythmAlloy Comp - SRAM Eagle 70, FOX Rhythm | Trek Fuel MX Gen 79 Eagle 90 Gen 7 |
|---|---|---|
| Fork | Fox FLOAT 36 Rhythm | Fox 36 Factory |
| Rear shock | Fox FLOAT | Fox Float Factory |
| Shifter | SRAM Eagle 70 Transmission | SRAM Eagle 90 Transmission |
| Derailleur | SRAM Eagle 70 Transmission | SRAM Eagle 90 Transmission |
| Cassette | SRAM 1270 Transmission | SRAM GX Eagle Transmission |
| Chain | SRAM Transmission | SRAM GX Eagle |
| Crankset | SRAM Eagle 70 Transmission | SRAM Eagle 90 Transmission |
| Bottom bracket | SRAM DUB | SRAM DUB |
| Tire | Specialized Butcher, Specialized Eliminator | Maxxis Assegai |
| Brake | SRAM DB8 Stealth | SRAM Maven 4-piston Bronze |
| Dropper post | X-Fusion Manic | not listed |
| Saddle | Specialized Bridge Comp | Trek Verse |
| Frame | not listed | Trek Alpha NEXT Platinum |
| Wheelset | not listed | Bontrager Line Comp 30 |
| Rotor | not listed | SRAM HS2 |
| Handlebar | not listed | Race Face Turbine |
| Grips | not listed | Trek Line Elite |
| Seatpost | not listed | Bontrager Line Dropper |
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app
