2021 Trek Fuel EX Gen 5 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 XL Trek Fuel EX Gen 5. 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 Gen 5 in XL, the Specialized Stumpjumper ST Men's Comp Carbon 27.5 in XL places the top of the head tube 8 mm higher and 10 mm further back, relative to the bottom bracket. Its wheelbase is 7 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +8 mm
- Higher front end
- Frame reach
- −10 mm
- Shorter frame reach
- Wheelbase
- −7 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 Gen 5, XLSpecialized 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 Gen 5 XL | Specialized Stumpjumper ST Men's Comp Carbon 27.5 XL | Difference |
|---|---|---|---|
| Reach | 500 | 490mm | −10 mm |
| Stack | 623 | 631mm | +8 mm |
| Head tube angle | 66.5° | 66.5° | ±0.0° |
| Seat tube angle | 75.5° | 75.2° | −0.3° |
| Effective top tube | 662 | 657mm | −5 mm |
| Chainstay length | 436 | 432mm | −4 mm |
| Wheelbase | 1241 | 1234mm | −7 mm |
| BB drop | 27 | 28mm | +1 mm |
| BB height | 346 | 325mm | −21 mm |
| Standover | 768 | 766mm | −2 mm |
| Seat tube length | 500 | 505mm | +5 mm |
| Head tube length | 120 | 155mm | +35 mm |
| Fork length | not listed | 522mm |
Differences are the Specialized Stumpjumper ST Men's Comp Carbon 27.5 minus the Trek Fuel EX Gen 5. Full charts: 2021 Trek Fuel EX Gen 5, 2019 Specialized Stumpjumper ST Men's Comp Carbon 27.5.
Where each sits in its class
Trek Fuel EX Gen 5Specialized 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 Gen 55 Gen 5 | 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 | Fox FLOAT 34 Rhythm |
| Shifter | Shimano Deore M6100 | SRAM NX Eagle |
| Derailleur | Shimano Deore M6100 | SRAM NX Eagle |
| Cassette | Trek Deore M6100 | SRAM NX Eagle |
| Chain | Shimano Deore | SRAM NX Eagle |
| Crankset | Shimano Deore M511 | SRAM NX Eagle |
| Bottom bracket | Shimano MT500 | SRAM DUB |
| Tire | Bontrager XR4 Comp | Specialized Butcher, Specialized Purgatory |
| Hub | Formula DC-511 | not listed |
| Rim | Alex Rims MD35 | Roval Traverse 27.5 |
| Stem | Bontrager Rhythm | not listed |
| Headset | Trek Knock Block | not listed |
| Seatpost | TranzX JD-YSP18 dropper | X-Fusion Manic |
| Saddle | Bontrager Arvada | Specialized Phenom Comp |
| Rear shock | not listed | Fox Float DPS Performance |
| Brake | not listed | SRAM Guide R |
| Grips | not listed | Specialized Sip Grip |
| Dropper post | not listed | X-Fusion Manic |
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