2017 Specialized Stumpjumper FSR Comp 29 vs 2018 Specialized Stumpjumper Comp Alloy 29/6Fattie
The M is the Specialized Stumpjumper Comp Alloy 29/6Fattie size closest to your M Specialized Stumpjumper FSR Comp 29. 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 Comp Alloy 29/6Fattie
Compared with the Specialized Stumpjumper FSR Comp 29 in M, the Specialized Stumpjumper Comp Alloy 29/6Fattie in M places the top of the head tube at about the same height and about as far forward, relative to the bottom bracket.
- Frame stack
- ±0 mm
- About the same height
- Frame reach
- ±0 mm
- About the same reach
- Wheelbase
- ±0 mm
- About the same
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Stumpjumper FSR Comp 29, MSpecialized Stumpjumper Comp Alloy 29/6Fattie, MDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Stumpjumper FSR Comp 29 M | Specialized Stumpjumper Comp Alloy 29/6Fattie M | Difference |
|---|---|---|---|
| Reach | 417mm | 417mm | ±0 mm |
| Stack | 617mm | 617mm | ±0 mm |
| Head tube angle | 67.5° | 67.5° | ±0.0° |
| Seat tube angle | 75° | 74° | −1.0° |
| Effective top tube | 582mm | 582mm | ±0 mm |
| Chainstay length | 437mm | 437mm | ±0 mm |
| Wheelbase | 1143mm | 1143mm | ±0 mm |
| BB drop | 36mm | 36mm | ±0 mm |
| Standover | 757mm | 757mm | ±0 mm |
| Seat tube length | 430mm | 430mm | ±0 mm |
| Fork length | 551mm | 551mm | ±0 mm |
| Head tube length | 95mm | 145mm | +50 mm |
| BB height | not listed | 338mm |
Differences are the Specialized Stumpjumper Comp Alloy 29/6Fattie minus the Specialized Stumpjumper FSR Comp 29. Full charts: 2017 Specialized Stumpjumper FSR Comp 29, 2018 Specialized Stumpjumper Comp Alloy 29/6Fattie.
Where each sits in its class
Specialized Stumpjumper FSR Comp 29Specialized Stumpjumper Comp Alloy 29/6Fattie
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 FSR Comp 29Comp 29 | Specialized Stumpjumper Comp Alloy 29/6FattieComp Alloy 29/6Fattie |
|---|---|---|
| Fork | RockShox Revelation RL | RockShox Reba RL |
| Rear shock | RockShox Monarch RT | RockShox Monarch RT |
| Shifter | SRAM GX | SRAM GX |
| Derailleur | SRAM GX | SRAM GX |
| Cassette | SRAM XG-1150 | SRAM XG-1150 |
| Chain | SRAM PC-1110 | KMC X-11 |
| Crankset | Race Face Aeffect | Race Face Aeffect |
| Tire | Specialized Butcher, Specialized Slaughter | Specialized Butcher, Specialized Purgatory |
| Rim | Roval Traverse 29 | Roval Traverse 29 |
| Brake | SRAM Guide R | SRAM Guide R |
| Grips | Specialized Sip Grip | Specialized Sip Grip |
| Dropper post | Specialized Command Post IRcc | not listed |
| Seatpost | Specialized Command Post IRcc | Specialized Command Post IRcc |
| Saddle | Specialized Henge Comp | Specialized Henge Comp |
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
