2017 Trek Fuel EX 29 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 29. 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 29 in XXL, the Specialized Stumpjumper ST Men's Comp Carbon 27.5 in XL places the top of the head tube 13 mm lower and 17 mm further back, relative to the bottom bracket. Its wheelbase is 13 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −13 mm
- Lower front end
- Frame reach
- −17 mm
- Shorter frame reach
- Wheelbase
- −13 mm
- Shorter: quicker to change direction
- Head angle
- −1.2°
- Slacker: calmer steering
- Chainstays
- ±0 mm
- About the same
The two frames
Trek Fuel EX 29, 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 29 XXL | Specialized Stumpjumper ST Men's Comp Carbon 27.5 XL | Difference |
|---|---|---|---|
| Reach | 507 | 490mm | −17 mm |
| Stack | 644 | 631mm | −13 mm |
| Head tube angle | 67.7° | 66.5° | −1.2° |
| Seat tube angle | 74.7° | 75.2° | +0.5° |
| Effective top tube | 686 | 657mm | −29 mm |
| Chainstay length | 432 | 432mm | ±0 mm |
| Wheelbase | 1247 | 1234mm | −13 mm |
| BB drop | 30 | 28mm | −2 mm |
| BB height | 337 | 325mm | −12 mm |
| Standover | 787 | 766mm | −21 mm |
| Seat tube length | 560 | 505mm | −55 mm |
| Head tube length | 145 | 155mm | +10 mm |
| Fork length | not listed | 522mm |
Differences are the Specialized Stumpjumper ST Men's Comp Carbon 27.5 minus the Trek Fuel EX 29. Full charts: 2017 Trek Fuel EX 29, 2019 Specialized Stumpjumper ST Men's Comp Carbon 27.5.
Where each sits in its class
Trek Fuel EX 29Specialized 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 EX 295 29 | Specialized Stumpjumper ST Men's Comp Carbon 27.5Men's Comp Carbon 27.5 12-speed |
|---|---|---|
| Frame | Trek Alpha Platinum | not listed |
| Fork | RockShox SEKTOR | Fox FLOAT 34 Rhythm |
| Shifter | Shimano Deore | SRAM NX Eagle |
| Derailleur | Shimano Deore | SRAM NX Eagle |
| Cassette | Shimano HG50 | SRAM NX Eagle |
| Chain | KMC X10 | SRAM NX Eagle |
| Bottom bracket | Trek PF92 | SRAM DUB |
| Tire | Bontrager XR3 | Specialized Butcher, Specialized Purgatory |
| Hub | Bontrager Boost148 | not listed |
| Rim | Bontrager AT-650 | Roval Traverse 27.5 |
| Brake | Shimano Acera M315 | SRAM Guide R |
| Stem | Bontrager Rhythm | not listed |
| Headset | Trek Knock Block | not listed |
| Seatpost | Bontrager SSR | X-Fusion Manic |
| Saddle | Bontrager Evoke 1.5 | Specialized Phenom Comp |
| Rear shock | not listed | Fox Float DPS Performance |
| Crankset | not listed | SRAM NX Eagle |
| Grips | not listed | Specialized Sip Grip |
| Dropper post | not listed | X-Fusion Manic |
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