2025 Specialized Stumpjumper 15 Alloy vs 2023 Specialized Stumpjumper EVO Comp Alloy
The S3 is the Specialized Stumpjumper EVO Comp Alloy size closest to your S3 Specialized Stumpjumper 15 Alloy. 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 Specialized Stumpjumper EVO Comp Alloy
Compared with the Specialized Stumpjumper 15 Alloy in S3, the Specialized Stumpjumper EVO Comp Alloy in S3 places the top of the head tube at about the same height and about as far forward, relative to the bottom bracket. Its wheelbase is 3 mm longer, which can contribute to stability at speed.
- Frame stack
- −1 mm
- About the same height
- Frame reach
- −2 mm
- About the same reach
- Wheelbase
- +3 mm
- Longer: steadier at speed
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- +3 mm
- Longer: more planted
The two frames
Specialized Stumpjumper 15 Alloy, S3Specialized Stumpjumper EVO Comp Alloy, S3Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Stumpjumper 15 Alloy S3 | Specialized Stumpjumper EVO Comp Alloy S3 | Difference |
|---|---|---|---|
| Reach | 450mm | 448mm | −2 mm |
| Stack | 627mm | 626mm | −1 mm |
| Head tube angle | 64.5° | 64.5° | ±0.0° |
| Seat tube angle | 77° | 77.2° | +0.2° |
| Effective top tube | 595mm | not listed | |
| Chainstay length | 435mm | 438mm | +3 mm |
| Wheelbase | 1213mm | 1216mm | +3 mm |
| BB drop | 38mm | 35mm | −3 mm |
| BB height | 337mm | 340mm | +3 mm |
| Standover | 745mm | 763mm | +18 mm |
| Seat tube length | 405mm | 405mm | ±0 mm |
| Fork length | 561mm | not listed | |
| Head tube length | 110mm | 105mm | −5 mm |
Differences are the Specialized Stumpjumper EVO Comp Alloy minus the Specialized Stumpjumper 15 Alloy. Full charts: 2025 Specialized Stumpjumper 15 Alloy, 2023 Specialized Stumpjumper EVO Comp Alloy.
Where each sits in its class
Specialized Stumpjumper 15 AlloySpecialized Stumpjumper EVO Comp Alloy
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 AlloyAlloy | Specialized Stumpjumper EVO Comp AlloyComp Alloy |
|---|---|---|
| Frame | Specialized M5 Alloy | Specialized Stumpjumper EVO |
| Fork | RockShox Psylo Silver | Fox FLOAT 36 Rhythm |
| Rear shock | X-Fusion 02 Pro R | Fox Float |
| Shifter | Shimano Deore M6100 | SRAM GX |
| Derailleur | Shimano Deore M6100 | SRAM GX Eagle |
| Cassette | Shimano Deore M6100 | SRAM GX Eagle |
| Chain | Shimano Deore M6100 | SRAM NX Eagle |
| Crankset | Shimano Deore | SRAM X1 Eagle |
| Tire | Specialized Butcher, Specialized Eliminator | Specialized Butcher, Specialized Eliminator |
| Brake | Shimano MT420 | SRAM Code RS |
| Stem | Trail | Specialized Alloy |
| Dropper post | TranzX Dropper | X-Fusion Manic |
| Seatpost | TranzX Dropper | X-Fusion Manic |
| Saddle | Specialized Bridge | Specialized Bridge |
| Chainring | not listed | Chainring |
| Bottom bracket | not listed | SRAM DUB |
| Wheelset | not listed | Specialized 29 Disc |
| Handlebar | not listed | Specialized alloy |
| Headset | not listed | FSA |
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
