2023 Specialized Stumpjumper EVO Comp Alloy vs 2025 Specialized Stumpjumper 15 Expert
The S6 is the Specialized Stumpjumper 15 Expert size closest to your S6 Specialized Stumpjumper EVO Comp 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 15 Expert
Compared with the Specialized Stumpjumper EVO Comp Alloy in S6, the Specialized Stumpjumper 15 Expert in S6 places the top of the head tube 13 mm higher 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
- +13 mm
- Higher front end
- 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
- Shorter: livelier
The two frames
Specialized Stumpjumper EVO Comp Alloy, S6Specialized Stumpjumper 15 Expert, S6Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Stumpjumper EVO Comp Alloy S6 | Specialized Stumpjumper 15 Expert S6 | Difference |
|---|---|---|---|
| Reach | 528mm | 530 | +2 mm |
| Stack | 654mm | 667 | +13 mm |
| Head tube angle | 64.5° | 64.5 | ±0.0° |
| Seat tube angle | 77° | 76.5 | −0.5° |
| Chainstay length | 448mm | 445 | −3 mm |
| Wheelbase | 1319mm | 1322 | +3 mm |
| BB drop | 35mm | 38 | +3 mm |
| BB height | 340mm | 337 | −3 mm |
| Standover | 770mm | 751 | −19 mm |
| Seat tube length | 465mm | not listed | |
| Fork length | not listed | not listed | |
| Head tube length | 135mm | not listed | |
| Effective top tube | not listed | 677 |
Differences are the Specialized Stumpjumper 15 Expert minus the Specialized Stumpjumper EVO Comp Alloy. Full charts: 2023 Specialized Stumpjumper EVO Comp Alloy, 2025 Specialized Stumpjumper 15 Expert.
Where each sits in its class
Specialized Stumpjumper EVO Comp AlloySpecialized 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 Comp AlloyComp Alloy | 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 | SRAM Pod Controller |
| Derailleur | SRAM GX Eagle | SRAM GX Eagle |
| Cassette | SRAM GX Eagle | SRAM GX Eagle Transmission |
| Chain | SRAM NX Eagle | SRAM GX Eagle |
| Crankset | SRAM X1 Eagle | SRAM GX Eagle |
| Chainring | Chainring | SRAM GX Eagle |
| Bottom bracket | SRAM DUB | SRAM DUB |
| Wheelset | Specialized 29 Disc | Specialized Roval Traverse |
| Tire | Specialized Butcher, Specialized Eliminator | Specialized Butcher, Specialized Eliminator |
| Brake | SRAM Code RS | SRAM Maven Bronze |
| Handlebar | Specialized alloy | Specialized 6000 |
| Stem | Specialized Alloy | Specialized Trail |
| Headset | FSA | Specialized Integrated |
| Dropper post | X-Fusion Manic | PNW Loam |
| Seatpost | X-Fusion Manic | not listed |
| Saddle | Specialized Bridge | Specialized Bridge |
| Hub | not listed | DT Swiss 370 |
| Rim | not listed | Roval Traverse |
| Rotor | not listed | SRAM HS2, SRAM Maven |
| Grips | not listed | Deity Lockjaw |
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