2017 Specialized Stumpjumper FSR Comp 650b vs 2018 Specialized Stumpjumper 27.5
The M is the Specialized Stumpjumper 27.5 size closest to your M Specialized Stumpjumper FSR Comp 650b. 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 27.5
Compared with the Specialized Stumpjumper FSR Comp 650b in M, the Specialized Stumpjumper 27.5 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 650b, MSpecialized Stumpjumper 27.5, MDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Stumpjumper FSR Comp 650b M | Specialized Stumpjumper 27.5 M | Difference |
|---|---|---|---|
| Reach | 414mm | 414mm | ±0 mm |
| Stack | 599mm | 599mm | ±0 mm |
| Head tube angle | 67° | 67° | ±0.0° |
| Seat tube angle | 74° | 74° | ±0.0° |
| Effective top tube | 585mm | 587mm | +2 mm |
| Chainstay length | 420mm | 420mm | ±0 mm |
| Wheelbase | 1126mm | 1126mm | ±0 mm |
| BB drop | 18mm | 18mm | ±0 mm |
| Standover | 748mm | 748mm | ±0 mm |
| Seat tube length | 430mm | 430mm | ±0 mm |
| Fork length | 542mm | 542mm | ±0 mm |
| Head tube length | 105mm | 115mm | +10 mm |
Differences are the Specialized Stumpjumper 27.5 minus the Specialized Stumpjumper FSR Comp 650b. Full charts: 2017 Specialized Stumpjumper FSR Comp 650b, 2018 Specialized Stumpjumper 27.5.
Where each sits in its class
Specialized Stumpjumper FSR Comp 650bSpecialized Stumpjumper 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 Stumpjumper FSR Comp 650bComp 650b | Specialized Stumpjumper 27.5S-Works 27.5 |
|---|---|---|
| Fork | RockShox Revelation RL 27.5 | Öhlins RXF 36 |
| Rear shock | RockShox Monarch RT | Öhlins STX |
| Shifter | SRAM GX | SRAM XX1 Eagle |
| Derailleur | SRAM GX | SRAM XX1 Eagle |
| Cassette | SRAM XG-1150 | SRAM X01 Eagle |
| Chain | SRAM PC-1110 | SRAM X01 Eagle |
| Crankset | Race Face Aeffect | SRAM XX1 Eagle |
| Tire | Specialized Butcher, Specialized Slaughter | Specialized Butcher |
| Rim | Roval Traverse | Roval Traverse SL 27.5 |
| Brake | SRAM Guide R | SRAM Guide RS |
| 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 Expert |
| Hub | not listed | Roval Traverse SL |
| Stem | not listed | Syntace F109 |
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