2018 Specialized Stumpjumper Men's 29 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 in M, the Specialized Fuse M4 in XL places the top of the head tube 38 mm higher and 55 mm further forward, relative to the bottom bracket. Its wheelbase is 45 mm longer, which can contribute to stability at speed.
- Frame stack
- +38 mm
- Higher front end
- Frame reach
- +55 mm
- Longer frame reach
- Wheelbase
- +45 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 is drawn. The Specialized Fuse M4 numbers we have for size XL are missing the chainstay length.
Geometry side by side
| Measurement | Specialized Stumpjumper Men's 29 M | Specialized Fuse M4 XL | Difference |
|---|---|---|---|
| Reach | 425mm | 480mm | +55 mm |
| Stack | 614mm | 652mm | +38 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 | 1214mm | +45 mm |
| BB drop | 33mm | not listed | |
| BB height | 342mm | not listed | |
| Standover | 750mm | 793mm | +43 mm |
| Seat tube length | 410mm | 505mm | +95 mm |
| Fork length | 560mm | 540mm | −20 mm |
| Head tube length | 95mm | 125mm | +30 mm |
Differences are the Specialized Fuse M4 minus the Specialized Stumpjumper Men's 29. Full charts: 2018 Specialized Stumpjumper Men's 29, 2020 Specialized Fuse M4.
Where each sits in its class
Specialized Stumpjumper Men's 29Specialized 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 29Men's S-Works 29 | Specialized Fuse M4 |
|---|---|---|
| Fork | Fox Factory | not listed |
| Rear shock | Fox Float DPX2 Factory | not listed |
| Shifter | SRAM XX1 Eagle | not listed |
| Derailleur | SRAM XX1 Eagle | not listed |
| Cassette | SRAM X01 Eagle | not listed |
| Chain | SRAM XX1 Eagle | not listed |
| Crankset | SRAM XX1 Eagle | not listed |
| Tire | Specialized Butcher, Specialized Purgatory | not listed |
| Hub | Roval Traverse | not listed |
| Rim | Roval Traverse SL 29 | not listed |
| Brake | SRAM Guide RSC | not listed |
| Stem | Syntace MegaForce 2 | not listed |
| Grips | Specialized Sip Grip | not listed |
| Seatpost | Specialized Command Post IRcc | not listed |
| Saddle | Specialized Phenom Expert | not listed |
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