2020 Specialized Fuse 27.5 vs 2020 Specialized Stumpjumper ST Alloy 27.5
The XL is the Specialized Stumpjumper ST Alloy 27.5 size closest to your XL Specialized Fuse 27.5. 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 Alloy 27.5
Compared with the Specialized Fuse 27.5 in XL, the Specialized Stumpjumper ST Alloy 27.5 in XL places the top of the head tube 7 mm higher and about as far forward, relative to the bottom bracket. Its wheelbase is 30 mm longer, which can contribute to stability at speed.
- Frame stack
- +7 mm
- Higher front end
- Frame reach
- ±0 mm
- About the same reach
- Wheelbase
- +30 mm
- Longer: steadier at speed
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- +2 mm
- About the same
The two frames
Specialized Fuse 27.5, XLSpecialized Stumpjumper ST Alloy 27.5, XLDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Fuse 27.5 XL | Specialized Stumpjumper ST Alloy 27.5 XL | Difference |
|---|---|---|---|
| Reach | 480mm | 480mm | ±0 mm |
| Stack | 630mm | 637mm | +7 mm |
| Head tube angle | 66° | 65.5° | −0.5° |
| Seat tube angle | 74° | 74.2° | +0.2° |
| Chainstay length | 430mm | 432mm | +2 mm |
| Wheelbase | 1213mm | 1243mm | +30 mm |
| Standover | 789mm | 770mm | −19 mm |
| Seat tube length | 505mm | 505mm | ±0 mm |
| Fork length | 520mm | 542mm | +22 mm |
| Head tube length | 135mm | 155mm | +20 mm |
| BB drop | not listed | 21mm | |
| BB height | not listed | 336mm |
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 |
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