2026 Specialized Stumpjumper 15 EVO Alloy SRAM Eagle, RockShox/X-Fusion vs 2026 Specialized Stumpjumper 15 Pro
The Specialized Stumpjumper 15 Pro size closest to your S3 is the S3. Compare the S3 instead
What changes on the Specialized Stumpjumper 15 Pro
Compared with the Specialized Stumpjumper 15 EVO Alloy SRAM Eagle, RockShox/X-Fusion in S3, the Specialized Stumpjumper 15 Pro in S4 places the top of the head tube 14 mm higher and 25 mm further forward, relative to the bottom bracket. Its wheelbase is 32 mm longer, which can contribute to stability at speed.
- Frame stack
- +14 mm
- Higher front end
- Frame reach
- +25 mm
- Longer frame reach
- Wheelbase
- +32 mm
- Longer: steadier at speed
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
We can't draw these frames yet. The Specialized Stumpjumper 15 EVO Alloy SRAM Eagle, RockShox/X-Fusion 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 SRAM Eagle, RockShox/X-Fusion S3 | Specialized Stumpjumper 15 Pro S4 | Difference |
|---|---|---|---|
| Reach | 445mm | 470 | +25 mm |
| Stack | 630mm | 644 | +14 mm |
| Head tube angle | 64° | 64 | ±0.0° |
| Effective top tube | 596mm | 625 | +29 mm |
| Chainstay length | 435mm | 435 | ±0 mm |
| Wheelbase | 1217mm | 1249 | +32 mm |
| BB drop | 35mm | 35 | ±0 mm |
| BB height | 340mm | 340 | ±0 mm |
| Standover | 745mm | 745 | ±0 mm |
| Seat tube length | 405mm | 425 | +20 mm |
| Fork length | 573mm | not listed | |
| Head tube length | 110mm | 125 | +15 mm |
| Seat tube angle | not listed | 76 |
Differences are the Specialized Stumpjumper 15 Pro minus the Specialized Stumpjumper 15 EVO Alloy SRAM Eagle, RockShox/X-Fusion. Full charts: 2026 Specialized Stumpjumper 15 EVO Alloy SRAM Eagle, RockShox/X-Fusion, 2026 Specialized Stumpjumper 15 Pro.
Where each sits in its class
Specialized Stumpjumper 15 EVO Alloy SRAM Eagle, RockShox/X-FusionSpecialized Stumpjumper 15 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 SRAM Eagle, RockShox/X-FusionAlloy - SRAM NX Eagle, RockShox/X-Fusion | Specialized Stumpjumper 15 ProPro |
|---|---|---|
| Rear shock | X-Fusion Pro RL | Fox Float X Factory |
| Shifter | SRAM NX Eagle | SRAM AXS POD Rocker |
| Derailleur | SRAM NX Eagle | SRAM X0 Eagle Transmission |
| Cassette | SRAM NX Eagle | SRAM 1295 X01 |
| Chain | SRAM NX Eagle | not listed |
| Crankset | SRAM NX Eagle | SRAM X0 Eagle Transmission |
| Bottom bracket | SRAM DUB | SRAM DUB GX |
| Tire | Specialized Butcher, Specialized Eliminator | Specialized Butcher, Specialized Eliminator |
| Brake | SRAM DB6 | SRAM Maven Silver Stealth |
| Dropper post | TranzX Dropper | BikeYoke Revive Max 3.0 |
| Saddle | Specialized Bridge Saddle | Specialized Bridge Expert |
| Frame | not listed | Specialized Stumpjumper 15 |
| Fork | not listed | Fox 36 Factory |
| Chainring | not listed | SRAM 32 |
| Wheelset | not listed | Roval Traverse SL II |
| Rotor | not listed | SRAM CenterLine |
| Handlebar | not listed | Deity Speedway |
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