2011 Specialized Stumpjumper FSR vs 2013 Trek Fuel EX
The Trek Fuel EX size closest to your M is the 18.5". Compare the 18.5" instead
What changes on the Trek Fuel EX
Compared with the Specialized Stumpjumper FSR in M, the Trek Fuel EX in 15.5" places the top of the head tube 38 mm lower and 43 mm further back, relative to the bottom bracket. Its wheelbase is 44 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −38 mm
- Lower front end
- Frame reach
- −43 mm
- Shorter frame reach
- Wheelbase
- −44 mm
- Shorter: quicker to change direction
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- +5 mm
- Longer: more planted
The two frames
Specialized Stumpjumper FSR, MTrek Fuel EX, 15.5"Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Stumpjumper FSR M | Trek Fuel EX 15.5" | Difference |
|---|---|---|---|
| Reach | 424mm | 381 | −43 mm |
| Stack | 584mm | 546 | −38 mm |
| Head tube angle | 68.5° | 68.0° | −0.5° |
| Seat tube angle | 70.5° | 68.5° | −2.0° |
| Chainstay length | 420mm | 425 | +5 mm |
| Wheelbase | 1116mm | 1072 | −44 mm |
| BB height | 335mm | 338 | +3 mm |
| Standover | 743mm | 745 | +2 mm |
| Seat tube length | 445mm | 367 | −78 mm |
| Effective top tube | not listed | 548 | |
| BB drop | not listed | 5 | |
| Head tube length | not listed | 108 |
Differences are the Trek Fuel EX minus the Specialized Stumpjumper FSR. Full charts: 2011 Specialized Stumpjumper FSR, 2013 Trek Fuel EX.
Where each sits in its class
Specialized Stumpjumper FSRTrek 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 FSRS-Works | Trek Fuel EX5 |
|---|---|---|
| Fork | Specialized Future Shock S140TA | RockShox Recon |
| Rear shock | Fox Brain Shock | not listed |
| Shifter | SRAM XX | SRAM X5 |
| Derailleur | SRAM X.0, SRAM XX XX SL | SRAM X-5 |
| Cassette | SRAM XX | SRAM PG-1030 |
| Chain | SRAM PC-1090 | not listed |
| Wheelset | Roval Control | Formula DC-20 |
| Tire | Specialized S-Works Purgatory, Specialized Captain Control | Bontrager XR3 |
| Hub | Roval Control SL | not listed |
| Brake | Avid XX | Hayes Dyno Sport |
| Stem | Syntace F109 | not listed |
| Saddle | Specialized Henge Expert | Bontrager Evoke 1 |
| Frame | not listed | Trek Alpha Platinum |
| Crankset | not listed | SRAM S800 |
| Headset | not listed | FSA NO.57SC |
| Seatpost | not listed | Bontrager SSR |
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