2016 Trek Fuel EX 9.8 27.5 vs 2018 Specialized Stumpjumper ST Women's Alloy 27.5
The S is the Specialized Stumpjumper ST Women's Alloy 27.5 size closest to your ML Trek Fuel EX 9.8 27.5. 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 ST Women's Alloy 27.5
Compared with the Trek Fuel EX 9.8 27.5 in ML, the Specialized Stumpjumper ST Women's Alloy 27.5 in S places the top of the head tube 12 mm higher and 7 mm further back, relative to the bottom bracket. Its wheelbase is 6 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +12 mm
- Higher front end
- Frame reach
- −7 mm
- Shorter frame reach
- Wheelbase
- −6 mm
- Shorter: quicker to change direction
- Head angle
- −1.5°
- Slacker: calmer steering
- Chainstays
- −1 mm
- About the same
The two frames
We can't draw these frames yet. The Trek Fuel EX 9.8 27.5 numbers we have for size ML are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Fuel EX 9.8 27.5 ML | Specialized Stumpjumper ST Women's Alloy 27.5 S | Difference |
|---|---|---|---|
| Reach | 432 | 425mm | −7 mm |
| Stack | 574 | 586mm | +12 mm |
| Head tube angle | 68.0° | 66.5° | −1.5° |
| Effective top tube | 608 | 568mm | −40 mm |
| Chainstay length | 433 | 432mm | −1 mm |
| Wheelbase | 1155 | 1149mm | −6 mm |
| BB drop | 17 | 28mm | +11 mm |
| BB height | 333 | 325mm | −8 mm |
| Standover | 730 | 744mm | +14 mm |
| Seat tube length | 445 | 380mm | −65 mm |
| Head tube length | 110 | 105mm | −5 mm |
| Seat tube angle | not listed | 76.3° | |
| Fork length | not listed | 522mm |
Differences are the Specialized Stumpjumper ST Women's Alloy 27.5 minus the Trek Fuel EX 9.8 27.5. Full charts: 2016 Trek Fuel EX 9.8 27.5, 2018 Specialized Stumpjumper ST Women's Alloy 27.5.
Where each sits in its class
Trek Fuel EX 9.8 27.5Specialized Stumpjumper ST Women's Alloy 27.5
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 Fuel EX 9.8 27.59.8 27.5 | Specialized Stumpjumper ST Women's Alloy 27.5Women's Alloy 27.5 |
|---|---|---|
| Frame | Trek OCLV | not listed |
| Fork | Fox 34 Float Performance | RockShox Recon RL |
| Shifter | Shimano Deore XT | Shimano SLX |
| Derailleur | Shimano Deore XT | Shimano SLX |
| Cassette | Shimano Deore XT | not listed |
| Chain | Shimano XT | KMC X-11 |
| Crankset | Shimano Deore XT | SRAM NX Power |
| Bottom bracket | Trek BB95 | SRAM Power |
| Wheelset | DT Swiss M1900 | not listed |
| Tire | Bontrager XR3 Expert | Specialized Butcher, Specialized Purgatory |
| Brake | Shimano Deore XT | Tektro Gemini Comp |
| Stem | Bontrager Rhythm | not listed |
| Headset | FSA IS2 | not listed |
| Seatpost | RockShox Reverb Stealth | not listed |
| Saddle | Bontrager Evoke 3 | Specialized Myth Sport |
| Rear shock | not listed | X-Fusion Pro RL |
| Grips | not listed | Specialized Sip Grip |
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