2026 Specialized Stumpjumper 15 EVO Alloy Comp SRAM 70, FOX Rhythm vs 2026 GT Sensor Carbon Pro
The M is the GT Sensor Carbon Pro 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 GT Sensor Carbon Pro
Compared with the Specialized Stumpjumper 15 EVO Alloy Comp SRAM 70, FOX Rhythm in S3, the GT Sensor Carbon Pro in M places the top of the head tube 3 mm higher and 10 mm further forward, relative to the bottom bracket. Its wheelbase is 4 mm longer, which can contribute to stability at speed.
- Frame stack
- +3 mm
- Higher front end
- Frame reach
- +10 mm
- Longer frame reach
- Wheelbase
- +4 mm
- Longer: steadier at speed
- Head angle
- +1.0°
- Steeper: sharper steering
- Chainstays
- +5 mm
- Longer: more planted
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 | GT Sensor Carbon Pro M | Difference |
|---|---|---|---|
| Reach | 445mm | 455 | +10 mm |
| Stack | 630mm | 633 | +3 mm |
| Head tube angle | 64° | 65.0 | +1.0° |
| Effective top tube | 596mm | 601 | +5 mm |
| Chainstay length | 435mm | 440 | +5 mm |
| Wheelbase | 1217mm | 1221 | +4 mm |
| BB drop | 35mm | 36 | +1 mm |
| BB height | 340mm | not listed | |
| Standover | 745mm | not listed | |
| Seat tube length | 405mm | 400 | −5 mm |
| Fork length | 573mm | not listed | |
| Head tube length | 110mm | 120 | +10 mm |
| Seat tube angle | not listed | 77.0 |
Differences are the GT Sensor Carbon Pro 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 GT Sensor Carbon Pro.
Where each sits in its class
Specialized Stumpjumper 15 EVO Alloy Comp SRAM 70, FOX RhythmGT Sensor Carbon Pro
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 | GT Sensor Carbon ProCarbon Pro |
|---|---|---|
| Fork | Fox 36 Rhythm | RockShox Lyrik Select |
| Rear shock | Fox Float X Performance | RockShox Super Deluxe Select |
| Shifter | SRAM Eagle 70 Transmission | SRAM NX Eagle |
| Derailleur | SRAM Eagle 70 Transmission | SRAM GX AXS |
| Cassette | SRAM 1270 Transmission | SRAM PG |
| Chain | SRAM Transmission | not listed |
| Crankset | SRAM Eagle 70 Transmission | TruVativ Descendant GX |
| Bottom bracket | SRAM DUB | SRAM DUB BSA |
| Tire | Specialized Butcher, Specialized Eliminator | Continental Kryptotal |
| Brake | SRAM DB8 | SRAM Code R |
| Dropper post | X-Fusion Manic | not listed |
| Saddle | Specialized Bridge Comp | not listed |
| Frame | not listed | GT Sensor |
| Wheelset | not listed | WTB KOM Trail |
| Rotor | not listed | SRAM Code R |
| Handlebar | not listed | GT Alloy Riser |
| Headset | not listed | FSA 42 |
| Seatpost | not listed | TranzX adjustable |
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