2021 Trek Fuel EX vs 2019 Specialized Stumpjumper ST Men's Comp Carbon 27.5
The XL is the Specialized Stumpjumper ST Men's Comp Carbon 27.5 size closest to your XXL Trek Fuel EX. 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 Men's Comp Carbon 27.5
Compared with the Trek Fuel EX in XXL, the Specialized Stumpjumper ST Men's Comp Carbon 27.5 in XL places the top of the head tube 10 mm lower and 30 mm further back, relative to the bottom bracket. Its wheelbase is 35 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −10 mm
- Lower front end
- Frame reach
- −30 mm
- Shorter frame reach
- Wheelbase
- −35 mm
- Shorter: quicker to change direction
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- −4 mm
- Shorter: livelier
The two frames
Trek Fuel EX, XXLSpecialized Stumpjumper ST Men's Comp Carbon 27.5, XLDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Trek Fuel EX XXL | Specialized Stumpjumper ST Men's Comp Carbon 27.5 XL | Difference |
|---|---|---|---|
| Reach | 520 | 490mm | −30 mm |
| Stack | 641 | 631mm | −10 mm |
| Head tube angle | 66.5° | 66.5° | ±0.0° |
| Seat tube angle | 75.5° | 75.2° | −0.3° |
| Effective top tube | 687 | 657mm | −30 mm |
| Chainstay length | 436 | 432mm | −4 mm |
| Wheelbase | 1269 | 1234mm | −35 mm |
| BB drop | 27 | 28mm | +1 mm |
| BB height | 346 | 325mm | −21 mm |
| Standover | 806 | 766mm | −40 mm |
| Seat tube length | 540 | 505mm | −35 mm |
| Head tube length | 140 | 155mm | +15 mm |
| Fork length | not listed | 522mm |
Differences are the Specialized Stumpjumper ST Men's Comp Carbon 27.5 minus the Trek Fuel EX. Full charts: 2021 Trek Fuel EX, 2019 Specialized Stumpjumper ST Men's Comp Carbon 27.5.
Where each sits in its class
Trek Fuel EXSpecialized Stumpjumper ST Men's Comp Carbon 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 EX5 Deore | Specialized Stumpjumper ST Men's Comp Carbon 27.5Men's Comp Carbon 27.5 12-speed |
|---|---|---|
| Frame | Trek Alpha Platinum | not listed |
| Fork | RockShox Recon Silver | Fox FLOAT 34 Rhythm |
| Rear shock | X-Fusion Pro 2 | Fox Float DPS Performance |
| Shifter | Shimano Deore XT Di2 | SRAM NX Eagle |
| Derailleur | Shimano Deore | SRAM NX Eagle |
| Cassette | Shimano Deore M6100 | SRAM NX Eagle |
| Crankset | Shimano MT511 | SRAM NX Eagle |
| Wheelset | Alex Rims MD35 | not listed |
| Tire | Bontrager XR4 | Specialized Butcher, Specialized Purgatory |
| Brake | Shimano MT200 | SRAM Guide R |
| Rotor | Shimano SM-RT56 | not listed |
| Dropper post | TranzX JD-YSP18 | X-Fusion Manic |
| Chain | not listed | SRAM NX Eagle |
| Bottom bracket | not listed | SRAM DUB |
| Rim | not listed | Roval Traverse 27.5 |
| Grips | not listed | Specialized Sip Grip |
| Seatpost | not listed | X-Fusion Manic |
| Saddle | not listed | Specialized Phenom Comp |
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