2012 Specialized Stumpjumper FSR Comp EVO vs 2014 Trek Fuel EX
The 21.5" is the Trek Fuel EX size closest to your XL Specialized Stumpjumper FSR Comp EVO. 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 Trek Fuel EX
Compared with the Specialized Stumpjumper FSR Comp EVO in XL, the Trek Fuel EX in 21.5" places the top of the head tube 20 mm lower and 3 mm further forward, relative to the bottom bracket. Its wheelbase is 10 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −20 mm
- Lower front end
- Frame reach
- +3 mm
- Longer frame reach
- Wheelbase
- −10 mm
- Shorter: quicker to change direction
- Head angle
- +1.0°
- Steeper: sharper steering
- Chainstays
- +5 mm
- Longer: more planted
The two frames
Specialized Stumpjumper FSR Comp EVO, XLTrek Fuel EX, 21.5"Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Stumpjumper FSR Comp EVO XL | Trek Fuel EX 21.5" | Difference |
|---|---|---|---|
| Reach | 464mm | 467 | +3 mm |
| Stack | 611mm | 591 | −20 mm |
| Head tube angle | 67° | 68.0° | +1.0° |
| Seat tube angle | 69° | 68.5° | −0.5° |
| Chainstay length | 420mm | 425 | +5 mm |
| Wheelbase | 1186mm | 1176 | −10 mm |
| BB drop | 4mm | 5 | +1 mm |
| BB height | 335mm | 338 | +3 mm |
| Standover | 761mm | 742 | −19 mm |
| Seat tube length | 523mm | 508 | −15 mm |
| Head tube length | 150mm | 157 | +7 mm |
| Effective top tube | not listed | 648 |
Differences are the Trek Fuel EX minus the Specialized Stumpjumper FSR Comp EVO. Full charts: 2012 Specialized Stumpjumper FSR Comp EVO, 2014 Trek Fuel EX.
Where each sits in its class
Specialized Stumpjumper FSR Comp EVOTrek Fuel EX
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 FSR Comp EVO | Trek Fuel EX6 |
|---|---|---|
| Frame | not listed | Trek Alpha Platinum |
| Fork | not listed | RockShox SEKTOR |
| Shifter | not listed | Shimano Deore |
| Derailleur | not listed | Shimano Deore, Shimano SLX Shadow |
| Cassette | not listed | Shimano HG62 |
| Crankset | not listed | Shimano Deore M522 |
| Wheelset | not listed | Formula DC51 |
| Tire | not listed | Bontrager XR3 |
| Brake | not listed | Avid Elixir 3 |
| Headset | not listed | FSA NO.57SC |
| Seatpost | not listed | Bontrager SSR |
| Saddle | not listed | Bontrager Evoke 1 |
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