2018 Specialized Stumpjumper Men's 29 Frameset vs 2020 Specialized Fuse M4
The Specialized Fuse M4 size closest to your M is the S. Compare the S instead
What changes on the Specialized Fuse M4
Compared with the Specialized Stumpjumper Men's 29 Frameset in M, the Specialized Fuse M4 in L places the top of the head tube 25 mm higher and 35 mm further forward, relative to the bottom bracket. Its wheelbase is 19 mm longer, which can contribute to stability at speed.
- Frame stack
- +25 mm
- Higher front end
- Frame reach
- +35 mm
- Longer frame reach
- Wheelbase
- +19 mm
- Longer: steadier at speed
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
Only the Specialized Stumpjumper Men's 29 Frameset is drawn. The Specialized Fuse M4 numbers we have for size L are missing the chainstay length.
Geometry side by side
| Measurement | Specialized Stumpjumper Men's 29 Frameset M | Specialized Fuse M4 L | Difference |
|---|---|---|---|
| Reach | 425mm | 460mm | +35 mm |
| Stack | 614mm | 639mm | +25 mm |
| Head tube angle | 66.5° | 66.5° | ±0.0° |
| Seat tube angle | 74.5° | 74° | −0.5° |
| Effective top tube | 595mm | not listed | |
| Chainstay length | 437mm | not listed | |
| Wheelbase | 1169mm | 1188mm | +19 mm |
| BB drop | 33mm | not listed | |
| BB height | 342mm | not listed | |
| Standover | 750mm | 754mm | +4 mm |
| Seat tube length | 410mm | 455mm | +45 mm |
| Fork length | 560mm | 540mm | −20 mm |
| Head tube length | 95mm | 110mm | +15 mm |
Differences are the Specialized Fuse M4 minus the Specialized Stumpjumper Men's 29 Frameset. Full charts: 2018 Specialized Stumpjumper Men's 29 Frameset, 2020 Specialized Fuse M4.
Where each sits in its class
Specialized Stumpjumper Men's 29 FramesetSpecialized Fuse M4
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 Stumpjumper Men's 29 FramesetMen's S-Works 29 Frameset | Specialized Fuse M4 |
|---|---|---|
| Rear shock | Fox Float DPX2 Factory | not listed |
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