2025 Specialized Stumpjumper 15 Alloy vs 2026 Specialized Stumpjumper 15 EVO
We can't match sizes for these two: one of them has no stack and reach for the sizes shown.
What changes on the Specialized Stumpjumper 15 EVO
- Frame stack
- n/a
- One of the bikes has no number for this
- Frame reach
- n/a
- One of the bikes has no number for this
- Wheelbase
- +4 mm
- Longer: steadier at speed
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- ±0 mm
- About the same
The two frames
Only the Specialized Stumpjumper 15 Alloy is drawn. The Specialized Stumpjumper 15 EVO numbers we have for size S3 are missing the reach and stack.
Geometry side by side
| Measurement | Specialized Stumpjumper 15 Alloy S3 | Specialized Stumpjumper 15 EVO S3 | Difference |
|---|---|---|---|
| Reach | 450mm | not listed | |
| Stack | 627mm | not listed | |
| Head tube angle | 64.5° | 64 | −0.5° |
| Seat tube angle | 77° | 76.5 | −0.5° |
| Effective top tube | 595mm | 596 | +1 mm |
| Chainstay length | 435mm | 435 | ±0 mm |
| Wheelbase | 1213mm | 1217 | +4 mm |
| BB drop | 38mm | 35 | −3 mm |
| BB height | 337mm | 340 | +3 mm |
| Standover | 745mm | 745 | ±0 mm |
| Seat tube length | 405mm | 405 | ±0 mm |
| Fork length | 561mm | not listed | |
| Head tube length | 110mm | 110 | ±0 mm |
Differences are the Specialized Stumpjumper 15 EVO minus the Specialized Stumpjumper 15 Alloy. Full charts: 2025 Specialized Stumpjumper 15 Alloy, 2026 Specialized Stumpjumper 15 EVO.
Where each sits in its class
Specialized Stumpjumper 15 AlloySpecialized Stumpjumper 15 EVO
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 15 EVOS-Works |
|---|---|---|
| Frame | Specialized M5 Alloy | Specialized FACT 11m Carbon |
| Fork | RockShox Psylo Silver | Fox 36 Factory GRIP X2 |
| Rear shock | X-Fusion 02 Pro R | Fox Float X Factory |
| Shifter | Shimano Deore M6100 | Shimano XTR M9250 |
| Derailleur | Shimano Deore M6100 | Shimano XTR |
| Cassette | Shimano Deore M6100 | Shimano XTR M9250 |
| Chain | Shimano Deore M6100 | Shimano XTR |
| Crankset | Shimano Deore | Shimano XTR |
| Tire | Specialized Butcher, Specialized Eliminator | Specialized Butcher, Specialized Eliminator |
| Brake | Shimano MT420 | Shimano XTR |
| Stem | Trail | Race Face Turbine R |
| Dropper post | TranzX Dropper | Fox Transfer Neo |
| Seatpost | TranzX Dropper | dropper |
| Saddle | Specialized Bridge | Specialized S-Works Power Mirror |
| Chainring | not listed | Shimano XTR |
| Bottom bracket | not listed | Shimano BB93 |
| Wheelset | not listed | Roval Traverse SL II |
| Hub | not listed | Industry Nine Hydra 2 |
| Rim | not listed | Roval Traverse SL |
| Rotor | not listed | Shimano XTR |
| Handlebar | not listed | Race Face ERA |
| Grips | not listed | Deity Lockjaw |
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