2018 Specialized Stumpjumper Pro 27.5 vs 2017 Specialized Stumpjumper FSR 650b
The M is the Specialized Stumpjumper FSR 650b size closest to your M Specialized Stumpjumper Pro 27.5. 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 FSR 650b
Compared with the Specialized Stumpjumper Pro 27.5 in M, the Specialized Stumpjumper FSR 650b 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 Pro 27.5, MSpecialized Stumpjumper FSR 650b, MDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Stumpjumper Pro 27.5 M | Specialized Stumpjumper FSR 650b 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 | 587mm | 587mm | ±0 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 | 115mm | 105mm | −10 mm |
Differences are the Specialized Stumpjumper FSR 650b minus the Specialized Stumpjumper Pro 27.5. Full charts: 2018 Specialized Stumpjumper Pro 27.5, 2017 Specialized Stumpjumper FSR 650b.
Where each sits in its class
Specialized Stumpjumper Pro 27.5Specialized Stumpjumper FSR 650b
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 Pro 27.5Pro 27.5 | Specialized Stumpjumper FSR 650bS-Works 650b |
|---|---|---|
| Fork | Öhlins RXF 36 | RockShox Pike RCT3 |
| Rear shock | Öhlins STX | Öhlins STX |
| Shifter | SRAM X01 Eagle | SRAM XX1 Eagle |
| Derailleur | SRAM X01 Eagle | SRAM XX1 Eagle |
| Cassette | SRAM X01 Eagle | SRAM X01 Eagle |
| Chain | SRAM X01 Eagle | SRAM XX1 Eagle |
| Crankset | TruVativ Descendant | SRAM XX1 Eagle |
| Tire | Specialized Butcher | Specialized Butcher, Specialized Slaughter |
| Hub | DT Swiss 350 | Roval Traverse, Roval Traverse SL |
| Rim | Roval Traverse | Roval Traverse SL 650 |
| Brake | SRAM Guide RS | SRAM Guide RS |
| Grips | Specialized Sip Grip | Specialized Sip Grip |
| Seatpost | Specialized Command Post IRcc | Specialized Command Post IRcc |
| Saddle | Specialized Henge Expert | Specialized Henge Expert |
| Stem | not listed | Syntace F109 |
| Dropper post | not listed | Specialized Command Post IRcc |
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