2012 Specialized Stumpjumper FSR EVO vs 2014 Trek Fuel EX
The 18.5" is the Trek Fuel EX size closest to your M Specialized Stumpjumper FSR 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 EVO in M, the Trek Fuel EX in 18.5" places the top of the head tube 24 mm lower and 17 mm further forward, relative to the bottom bracket.
- Frame stack
- −24 mm
- Lower front end
- Frame reach
- +17 mm
- Longer frame reach
- Wheelbase
- +2 mm
- About the same
- Head angle
- +1.0°
- Steeper: sharper steering
- Chainstays
- +5 mm
- Longer: more planted
The two frames
Specialized Stumpjumper FSR EVO, MTrek Fuel EX, 18.5"Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Stumpjumper FSR EVO M | Trek Fuel EX 18.5" | Difference |
|---|---|---|---|
| Reach | 414mm | 431 | +17 mm |
| Stack | 592mm | 568 | −24 mm |
| Head tube angle | 67° | 68.0° | +1.0° |
| Seat tube angle | 69° | 68.5° | −0.5° |
| Chainstay length | 420mm | 425 | +5 mm |
| Wheelbase | 1129mm | 1131 | +2 mm |
| BB drop | 4mm | 5 | +1 mm |
| BB height | 335mm | 338 | +3 mm |
| Standover | 744mm | 730 | −14 mm |
| Seat tube length | 430mm | 445 | +15 mm |
| Head tube length | 130mm | 132 | +2 mm |
| Effective top tube | not listed | 605 |
Differences are the Trek Fuel EX minus the Specialized Stumpjumper FSR EVO. Full charts: 2012 Specialized Stumpjumper FSR EVO, 2014 Trek Fuel EX.
Where each sits in its class
Specialized Stumpjumper FSR 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 EVOEVO | Trek Fuel EX6 |
|---|---|---|
| Rear shock | Fox RP23 Adaptive Logic | not listed |
| Seatpost | Specialized Command Post BlackLite | Bontrager SSR |
| 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 |
| Saddle | not listed | Bontrager Evoke 1 |
Know what is on every bike.
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