2023 Specialized Stumpjumper EVO Expert vs 2025 Specialized Stumpjumper 15 Expert
The S1 is the Specialized Stumpjumper 15 Expert size closest to your S1 Specialized Stumpjumper EVO Expert. 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 15 Expert
Compared with the Specialized Stumpjumper EVO Expert in S1, the Specialized Stumpjumper 15 Expert in S1 places the top of the head tube 5 mm lower and 8 mm further back, relative to the bottom bracket. Its wheelbase is 18 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −5 mm
- Lower front end
- Frame reach
- −8 mm
- Shorter frame reach
- Wheelbase
- −18 mm
- Shorter: quicker to change direction
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- −8 mm
- Shorter: livelier
The two frames
Specialized Stumpjumper EVO Expert, S1Specialized Stumpjumper 15 Expert, S1Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Stumpjumper EVO Expert S1 | Specialized Stumpjumper 15 Expert S1 | Difference |
|---|---|---|---|
| Reach | 408mm | 400 | −8 mm |
| Stack | 613mm | 608 | −5 mm |
| Head tube angle | 64.5° | 64.5 | ±0.0° |
| Seat tube angle | 78° | 78 | ±0.0° |
| Chainstay length | 438mm | 430 | −8 mm |
| Wheelbase | 1167mm | 1149 | −18 mm |
| BB drop | 40mm | 41 | +1 mm |
| BB height | 335mm | 334 | −1 mm |
| Standover | 733mm | 738 | +5 mm |
| Seat tube length | 385mm | not listed | |
| Fork length | 561mm | not listed | |
| Head tube length | 95mm | not listed | |
| Effective top tube | not listed | 541 |
Differences are the Specialized Stumpjumper 15 Expert minus the Specialized Stumpjumper EVO Expert. Full charts: 2023 Specialized Stumpjumper EVO Expert, 2025 Specialized Stumpjumper 15 Expert.
Where each sits in its class
Specialized Stumpjumper EVO ExpertSpecialized Stumpjumper 15 Expert
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 EVO ExpertExpert | Specialized Stumpjumper 15 ExpertExpert |
|---|---|---|
| Frame | Specialized Stumpjumper EVO | Specialized FACT 11m |
| Fork | Fox FLOAT 36 Rhythm | Fox 36 Performance Elite |
| Rear shock | Fox Float | Fox Float Performance Elite |
| Shifter | SRAM GX Eagle AXS Controller | SRAM Pod Controller |
| Derailleur | SRAM GX Eagle AXS | SRAM GX Eagle |
| Cassette | SRAM GX Eagle | SRAM GX Eagle Transmission |
| Chain | SRAM GX Eagle | SRAM GX Eagle |
| Crankset | SRAM GX Eagle | SRAM GX Eagle |
| Chainring | Chainring | SRAM GX Eagle |
| Bottom bracket | SRAM DUB | SRAM DUB |
| Wheelset | Roval Traverse | Specialized Roval Traverse |
| Tire | Specialized Butcher, Specialized Eliminator | Specialized Butcher, Specialized Eliminator |
| Hub | Roval DT Swiss 370 | DT Swiss 370 |
| Rim | Roval Traverse 29 | Roval Traverse |
| Brake | SRAM Code RS | SRAM Maven Bronze |
| Handlebar | Specialized alloy | Specialized 6000 |
| Stem | Specialized Alloy | Specialized Trail |
| Grips | Specialized Deity Lockjaw Grips | Deity Lockjaw |
| Headset | FSA | Specialized Integrated |
| Dropper post | OneUp Components One Fifty | PNW Loam |
| Seatpost | Specialized OneUp | not listed |
| Saddle | Specialized Bridge | Specialized Bridge |
| Rotor | not listed | SRAM HS2, SRAM Maven |
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