2017 Specialized Stumpjumper FSR 650b vs 2018 Specialized Stumpjumper 27.5 Frameset
The S is the Specialized Stumpjumper 27.5 Frameset size closest to your S Specialized Stumpjumper FSR 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 Frameset
Compared with the Specialized Stumpjumper FSR 650b in S, the Specialized Stumpjumper 27.5 Frameset in S 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 650b, SSpecialized Stumpjumper 27.5 Frameset, SDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Stumpjumper FSR 650b S | Specialized Stumpjumper 27.5 Frameset S | Difference |
|---|---|---|---|
| Reach | 388mm | 388mm | ±0 mm |
| Stack | 590mm | 590mm | ±0 mm |
| Head tube angle | 67° | 67° | ±0.0° |
| Seat tube angle | 74° | 74° | ±0.0° |
| Effective top tube | 558mm | 558mm | ±0 mm |
| Chainstay length | 420mm | 420mm | ±0 mm |
| Wheelbase | 1096mm | 1096mm | ±0 mm |
| BB drop | 18mm | 18mm | ±0 mm |
| Standover | 742mm | 742mm | ±0 mm |
| Seat tube length | 396mm | 396mm | ±0 mm |
| Fork length | 542mm | 542mm | ±0 mm |
| Head tube length | 95mm | 105mm | +10 mm |
Differences are the Specialized Stumpjumper 27.5 Frameset minus the Specialized Stumpjumper FSR 650b. Full charts: 2017 Specialized Stumpjumper FSR 650b, 2018 Specialized Stumpjumper 27.5 Frameset.
Where each sits in its class
Specialized Stumpjumper FSR 650bSpecialized Stumpjumper 27.5 Frameset
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 650bS-Works 650b | Specialized Stumpjumper 27.5 FramesetS-Works Frameset |
|---|---|---|
| Fork | RockShox Pike RCT3 | not listed |
| Rear shock | Öhlins STX | Öhlins STX |
| 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 Slaughter | not listed |
| Hub | Roval Traverse, Roval Traverse SL | not listed |
| Rim | Roval Traverse SL 650 | not listed |
| Brake | SRAM Guide RS | not listed |
| Stem | Syntace F109 | not listed |
| Grips | Specialized Sip Grip | not listed |
| Dropper post | Specialized Command Post IRcc | not listed |
| Seatpost | Specialized Command Post IRcc | not listed |
| Saddle | Specialized Henge Expert | not listed |
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