2017 Specialized Stumpjumper FSR Expert Carbon 650b vs 2018 Specialized Stumpjumper 27.5
The Specialized Stumpjumper 27.5 size closest to your M is the M. Compare the M instead
What changes on the Specialized Stumpjumper 27.5
Compared with the Specialized Stumpjumper FSR Expert Carbon 650b in M, the Specialized Stumpjumper 27.5 in L places the top of the head tube 9 mm higher and 28 mm further forward, relative to the bottom bracket. Its wheelbase is 32 mm longer, which can contribute to stability at speed.
- Frame stack
- +9 mm
- Higher front end
- Frame reach
- +28 mm
- Longer frame reach
- Wheelbase
- +32 mm
- Longer: steadier at speed
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Stumpjumper FSR Expert Carbon 650b, MSpecialized Stumpjumper 27.5, LDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Stumpjumper FSR Expert Carbon 650b M | Specialized Stumpjumper 27.5 L | Difference |
|---|---|---|---|
| Reach | 414mm | 442mm | +28 mm |
| Stack | 599mm | 608mm | +9 mm |
| Head tube angle | 67° | 67° | ±0.0° |
| Seat tube angle | 74° | 74° | ±0.0° |
| Effective top tube | 587mm | 618mm | +31 mm |
| Chainstay length | 420mm | 420mm | ±0 mm |
| Wheelbase | 1126mm | 1158mm | +32 mm |
| BB drop | 18mm | 18mm | ±0 mm |
| Standover | 748mm | 762mm | +14 mm |
| Seat tube length | 430mm | 468mm | +38 mm |
| Fork length | 542mm | 542mm | ±0 mm |
| Head tube length | 105mm | 125mm | +20 mm |
Differences are the Specialized Stumpjumper 27.5 minus the Specialized Stumpjumper FSR Expert Carbon 650b. Full charts: 2017 Specialized Stumpjumper FSR Expert Carbon 650b, 2018 Specialized Stumpjumper 27.5.
Where each sits in its class
Specialized Stumpjumper FSR Expert Carbon 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 Expert Carbon 650bExpert Carbon 650b | Specialized Stumpjumper 27.5S-Works 27.5 |
|---|---|---|
| Fork | RockShox Pike RC 27.5 | Öhlins RXF 36 |
| Rear shock | RockShox Monarch RT3 | Öhlins STX |
| Shifter | SRAM GX | SRAM XX1 Eagle |
| Derailleur | SRAM X1 | 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 |
| Hub | Roval Traverse | Roval Traverse SL |
| Rim | Roval Traverse 650 | 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 |
| Stem | not listed | Syntace F109 |
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