2017 Trek Stache 9.8 vs 2015 Specialized Stumpjumper FSR EVO 650b
The XL is the Specialized Stumpjumper FSR EVO 650b size closest to your XL Trek Stache 9.8. 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 FSR EVO 650b
Compared with the Trek Stache 9.8 in XL, the Specialized Stumpjumper FSR EVO 650b in XL places the top of the head tube 12 mm higher and 3 mm further back, relative to the bottom bracket. Its wheelbase is 26 mm longer, which can contribute to stability at speed.
- Frame stack
- +12 mm
- Higher front end
- Frame reach
- −3 mm
- Shorter frame reach
- Wheelbase
- +26 mm
- Longer: steadier at speed
- Head angle
- −0.4°
- Slacker: calmer steering
- Chainstays
- +15 mm
- Longer: more planted
The two frames
Trek Stache 9.8, XLSpecialized Stumpjumper FSR EVO 650b, XLDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Trek Stache 9.8 XL | Specialized Stumpjumper FSR EVO 650b XL | Difference |
|---|---|---|---|
| Reach | 470 | 467mm | −3 mm |
| Stack | 649 | 661mm | +12 mm |
| Head tube angle | 68.4° | 68° | −0.4° |
| Seat tube angle | 73.5° | 74° | +0.5° |
| Effective top tube | 664 | 643mm | −21 mm |
| Chainstay length | 420 | 435mm | +15 mm |
| Wheelbase | 1167 | 1193mm | +26 mm |
| BB drop | 72 | not listed | |
| BB height | 328 | 327mm | −1 mm |
| Standover | 792 | 754mm | −38 mm |
| Seat tube length | 521 | 523mm | +2 mm |
| Head tube length | 110 | not listed |
Differences are the Specialized Stumpjumper FSR EVO 650b minus the Trek Stache 9.8. Full charts: 2017 Trek Stache 9.8, 2015 Specialized Stumpjumper FSR EVO 650b.
Where each sits in its class
Trek Stache 9.8Specialized Stumpjumper FSR EVO 650b
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 | Trek Stache 9.89.8 | Specialized Stumpjumper FSR EVO 650bS-Works EVO 650b |
|---|---|---|
| Frame | Trek OCLV | not listed |
| Fork | RockShox Pike RC | RockShox Pike RCT3 |
| Shifter | SRAM X1 | SRAM XX1 |
| Derailleur | SRAM X01 | SRAM XX1 |
| Cassette | SRAM XG-1175 | SRAM XX1 |
| Chain | SRAM PC1110 | SRAM PC-XX1 |
| Crankset | SRAM X1 | not listed |
| Bottom bracket | Trek PF92 | not listed |
| Wheelset | Bontrager Line Pro 40 | not listed |
| Tire | Bontrager Chupacabra | Specialized Butcher Control, Specialized Slaughter Control |
| Brake | SRAM Guide RS | Shimano XTR |
| Handlebar | Bontrager Line | not listed |
| Stem | Bontrager Line | Syntace F109 |
| Seatpost | Bontrager Line 125 | Specialized Command Post IR |
| Saddle | Bontrager Montrose Elite | Specialized Henge Expert |
| Rear shock | not listed | Fox FLOAT CTD Factory |
| Hub | not listed | Roval Traverse |
| Rim | not listed | Roval Traverse SL Fattie |
| Grips | not listed | Specialized Sip Grip |
| Dropper post | not listed | Specialized Command Post IR |
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