2020 Specialized Fuse 27.5 vs 2020 Specialized Stumpjumper ST Alloy 27.5
The Specialized Stumpjumper ST Alloy 27.5 size closest to your M is the M. Compare the M instead
What changes on the Specialized Stumpjumper ST Alloy 27.5
Compared with the Specialized Fuse 27.5 in M, the Specialized Stumpjumper ST Alloy 27.5 in XS places the top of the head tube 22 mm lower and 35 mm further back, relative to the bottom bracket. Its wheelbase is 33 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −22 mm
- Lower front end
- Frame reach
- −35 mm
- Shorter frame reach
- Wheelbase
- −33 mm
- Shorter: quicker to change direction
- Head angle
- +0.5°
- Steeper: sharper steering
- Chainstays
- +2 mm
- About the same
The two frames
Specialized Fuse 27.5, MSpecialized Stumpjumper ST Alloy 27.5, XSDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Fuse 27.5 M | Specialized Stumpjumper ST Alloy 27.5 XS | Difference |
|---|---|---|---|
| Reach | 440mm | 405mm | −35 mm |
| Stack | 603mm | 581mm | −22 mm |
| Head tube angle | 66° | 66.5° | +0.5° |
| Seat tube angle | 74° | 76.5° | +2.5° |
| Chainstay length | 430mm | 432mm | +2 mm |
| Wheelbase | 1160mm | 1127mm | −33 mm |
| Standover | 739mm | 742mm | +3 mm |
| Seat tube length | 410mm | 380mm | −30 mm |
| Fork length | 520mm | 522mm | +2 mm |
| Head tube length | 105mm | 100mm | −5 mm |
| BB drop | not listed | 28mm | |
| BB height | not listed | 325mm |
Differences are the Specialized Stumpjumper ST Alloy 27.5 minus the Specialized Fuse 27.5. Full charts: 2020 Specialized Fuse 27.5, 2020 Specialized Stumpjumper ST Alloy 27.5.
Where each sits in its class
Specialized Fuse 27.5Specialized Stumpjumper ST Alloy 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 | Specialized Fuse 27.527.5 | Specialized Stumpjumper ST Alloy 27.5 |
|---|---|---|
| Fork | RockShox Judy | not listed |
| Shifter | Shimano Deore | not listed |
| Derailleur | Shimano Deore | not listed |
| Chain | KMC X10 | not listed |
| Crankset | Specialized Stout | not listed |
| Wheelset | Specialized Stout | not listed |
| Tire | Specialized Butcher GRID, Specialized Slaughter GRID | not listed |
| Brake | Tektro HD-M275 | not listed |
| Handlebar | Specialized Stout | not listed |
| Stem | Specialized Stout | not listed |
| Seatpost | TranzX Dropper | not listed |
| Saddle | Specialized Bridge Saddle | 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
