2017 Trek Fuel EX 9.8 29 vs 2019 Specialized Stumpjumper ST Men's Comp Carbon 27.5
The Specialized Stumpjumper ST Men's Comp Carbon 27.5 size closest to your ML is the M. Compare the M instead
What changes on the Specialized Stumpjumper ST Men's Comp Carbon 27.5
Compared with the Trek Fuel EX 9.8 29 in ML, the Specialized Stumpjumper ST Men's Comp Carbon 27.5 in XL places the top of the head tube 28 mm higher and 40 mm further forward, relative to the bottom bracket. Its wheelbase is 61 mm longer, which can contribute to stability at speed.
- Frame stack
- +28 mm
- Higher front end
- Frame reach
- +40 mm
- Longer frame reach
- Wheelbase
- +61 mm
- Longer: steadier at speed
- Head angle
- −1.2°
- Slacker: calmer steering
- Chainstays
- ±0 mm
- About the same
The two frames
Trek Fuel EX 9.8 29, MLSpecialized 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 9.8 29 ML | Specialized Stumpjumper ST Men's Comp Carbon 27.5 XL | Difference |
|---|---|---|---|
| Reach | 450 | 490mm | +40 mm |
| Stack | 603 | 631mm | +28 mm |
| Head tube angle | 67.7° | 66.5° | −1.2° |
| Seat tube angle | 74.7° | 75.2° | +0.5° |
| Effective top tube | 617 | 657mm | +40 mm |
| Chainstay length | 432 | 432mm | ±0 mm |
| Wheelbase | 1173 | 1234mm | +61 mm |
| BB drop | 30 | 28mm | −2 mm |
| BB height | 337 | 325mm | −12 mm |
| Standover | 742 | 766mm | +24 mm |
| Seat tube length | 440 | 505mm | +65 mm |
| Head tube length | 100 | 155mm | +55 mm |
| Fork length | not listed | 522mm |
Differences are the Specialized Stumpjumper ST Men's Comp Carbon 27.5 minus the Trek Fuel EX 9.8 29. Full charts: 2017 Trek Fuel EX 9.8 29, 2019 Specialized Stumpjumper ST Men's Comp Carbon 27.5.
Where each sits in its class
Trek Fuel EX 9.8 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 9.8 299.8 29 | Specialized Stumpjumper ST Men's Comp Carbon 27.5Men's Comp Carbon 27.5 12-speed |
|---|---|---|
| Frame | Trek OCLV | not listed |
| Fork | Fox 34 Float Performance | Fox FLOAT 34 Rhythm |
| Shifter | Shimano XT M8000 | SRAM NX Eagle |
| Derailleur | Shimano Deore XT | SRAM NX Eagle |
| Cassette | Shimano Deore XT | SRAM NX Eagle |
| Chain | Shimano Deore XT | SRAM NX Eagle |
| Crankset | Shimano Deore XT | SRAM NX Eagle |
| Bottom bracket | Trek PF92 | SRAM DUB |
| Wheelset | Bontrager Line Comp 30 | not listed |
| Tire | Bontrager XR3 Team Issue | Specialized Butcher, Specialized Purgatory |
| Brake | Shimano Deore XT | SRAM Guide R |
| Handlebar | Bontrager Line | not listed |
| Stem | Bontrager Line | not listed |
| Headset | Trek Knock Block | not listed |
| Seatpost | Bontrager Line 125 | X-Fusion Manic |
| Saddle | Bontrager Evoke 3 | Specialized Phenom Comp |
| Rear shock | not listed | Fox Float DPS Performance |
| Rim | not listed | Roval Traverse 27.5 |
| Grips | not listed | Specialized Sip Grip |
| Dropper post | not listed | X-Fusion Manic |
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