2012 Specialized Stumpjumper FSR Elite vs 2014 Trek Fuel EX
The 18.5" is the Trek Fuel EX size closest to your M Specialized Stumpjumper FSR Elite. 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 Elite in M, the Trek Fuel EX in 18.5" places the top of the head tube 19 mm lower and 7 mm further forward, relative to the bottom bracket. Its wheelbase is 8 mm longer, which can contribute to stability at speed.
- Frame stack
- −19 mm
- Lower front end
- Frame reach
- +7 mm
- Longer frame reach
- Wheelbase
- +8 mm
- Longer: steadier at speed
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- +5 mm
- Longer: more planted
The two frames
Specialized Stumpjumper FSR Elite, MTrek Fuel EX, 18.5"Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Stumpjumper FSR Elite M | Trek Fuel EX 18.5" | Difference |
|---|---|---|---|
| Reach | 424mm | 431 | +7 mm |
| Stack | 587mm | 568 | −19 mm |
| Head tube angle | 68° | 68.0° | ±0.0° |
| Seat tube angle | 70° | 68.5° | −1.5° |
| Chainstay length | 420mm | 425 | +5 mm |
| Wheelbase | 1123mm | 1131 | +8 mm |
| BB drop | 1mm | 5 | +4 mm |
| BB height | 338mm | 338 | ±0 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 Elite. Full charts: 2012 Specialized Stumpjumper FSR Elite, 2014 Trek Fuel EX.
Where each sits in its class
Specialized Stumpjumper FSR EliteTrek 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 EliteElite | Trek Fuel EX6 |
|---|---|---|
| Fork | Fox Evolution 140 TALAS RL | RockShox SEKTOR |
| Rear shock | Fox Brain | not listed |
| Shifter | Shimano Deore M660 | Shimano Deore |
| Derailleur | SRAM X-7, Shimano XTR M985 Shadow Plus | Shimano Deore, Shimano SLX Shadow |
| Cassette | SRAM PG-1050 | Shimano HG62 |
| Chain | KMC X10 | not listed |
| Crankset | SRAM S-2200 | Shimano Deore M522 |
| Tire | Specialized Purgatory Control, Specialized Ground Control | Bontrager XR3 |
| Hub | Specialized Hi Lo | not listed |
| Brake | Avid Elixir 7 SL | Avid Elixir 3 |
| Seatpost | Specialized Command Post BlackLite | Bontrager SSR |
| Saddle | Specialized Henge | Bontrager Evoke 1 |
| Frame | not listed | Trek Alpha Platinum |
| Wheelset | not listed | Formula DC51 |
| Headset | not listed | FSA NO.57SC |
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