2016 Trek Fuel EX 29 Alloy Frameset vs 2015 Specialized Stumpjumper FSR EVO 650b
The M is the Specialized Stumpjumper FSR EVO 650b size closest to your ML Trek Fuel EX 29 Alloy Frameset. 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 FSR EVO 650b
Compared with the Trek Fuel EX 29 Alloy Frameset in ML, the Specialized Stumpjumper FSR EVO 650b in M places the top of the head tube 8 mm higher and 11 mm further back, relative to the bottom bracket. Its wheelbase is 14 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +8 mm
- Higher front end
- Frame reach
- −11 mm
- Shorter frame reach
- Wheelbase
- −14 mm
- Shorter: quicker to change direction
- Head angle
- −0.8°
- Slacker: calmer steering
- Chainstays
- −1 mm
- About the same
The two frames
Trek Fuel EX 29 Alloy Frameset, MLSpecialized Stumpjumper FSR EVO 650b, MDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Trek Fuel EX 29 Alloy Frameset ML | Specialized Stumpjumper FSR EVO 650b M | Difference |
|---|---|---|---|
| Reach | 437 | 426mm | −11 mm |
| Stack | 611 | 619mm | +8 mm |
| Head tube angle | 68.8° | 68° | −0.8° |
| Seat tube angle | 73.6° | 74° | +0.4° |
| Effective top tube | 617 | 595mm | −22 mm |
| Chainstay length | 436 | 435mm | −1 mm |
| Wheelbase | 1151 | 1137mm | −14 mm |
| BB drop | 36 | not listed | |
| BB height | 334 | 327mm | −7 mm |
| Standover | 780 | 729mm | −51 mm |
| Seat tube length | 445 | 430mm | −15 mm |
| Head tube length | 115 | not listed |
Differences are the Specialized Stumpjumper FSR EVO 650b minus the Trek Fuel EX 29 Alloy Frameset. Full charts: 2016 Trek Fuel EX 29 Alloy Frameset, 2015 Specialized Stumpjumper FSR EVO 650b.
Where each sits in its class
Trek Fuel EX 29 Alloy FramesetSpecialized Stumpjumper FSR EVO 650b
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 29 Alloy Frameset29 Alloy Frameset | Specialized Stumpjumper FSR EVO 650b |
|---|---|---|
| Frame | Trek Alpha Platinum | not listed |
| Headset | FSA IS2 | not listed |
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app



