2018 Specialized Fatboy Expert Carbon vs 2020 Trek Farley 9.8
The M is the Trek Farley 9.8 size closest to your M Specialized Fatboy Expert Carbon. 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 Trek Farley 9.8
Compared with the Specialized Fatboy Expert Carbon in M, the Trek Farley 9.8 in M places the top of the head tube at about the same height and 10 mm further back, relative to the bottom bracket. Its wheelbase is 6 mm longer, which can contribute to stability at speed.
- Frame stack
- −1 mm
- About the same height
- Frame reach
- −10 mm
- Shorter frame reach
- Wheelbase
- +6 mm
- Longer: steadier at speed
- Head angle
- −1.5°
- Slacker: calmer steering
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Fatboy Expert Carbon, MTrek Farley 9.8, MDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Fatboy Expert Carbon M | Trek Farley 9.8 M | Difference |
|---|---|---|---|
| Reach | 420mm | 410 | −10 mm |
| Stack | 602mm | 601 | −1 mm |
| Head tube angle | 70.5° | 69.0° | −1.5° |
| Seat tube angle | 73° | 73.0° | ±0.0° |
| Effective top tube | 604mm | 594 | −10 mm |
| Chainstay length | 455mm | 455 | ±0 mm |
| Wheelbase | 1113mm | 1119 | +6 mm |
| BB drop | 60mm | 67 | +7 mm |
| BB height | 307mm | 321 | +14 mm |
| Standover | 752mm | 757 | +5 mm |
| Seat tube length | 434mm | 419 | −15 mm |
| Fork length | 496mm | not listed | |
| Head tube length | 94mm | 100 | +6 mm |
Differences are the Trek Farley 9.8 minus the Specialized Fatboy Expert Carbon. Full charts: 2018 Specialized Fatboy Expert Carbon, 2020 Trek Farley 9.8.
Where each sits in its class
Specialized Fatboy Expert CarbonTrek Farley 9.8
Each bike is ranked against the other fat 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 Fatboy Expert CarbonExpert Carbon | Trek Farley 9.89.8 |
|---|---|---|
| Shifter | SRAM X01 | SRAM GX Eagle |
| Derailleur | SRAM X01 | SRAM GX Eagle |
| Cassette | SRAM XG-1180 | SRAM GX Eagle |
| Chain | SRAM XX1 | SRAM GX Eagle |
| Crankset | Race Face Next SL | TruVativ Stylo |
| Tire | Specialized Ground Control Fat | Bontrager Barbegazi |
| Hub | Specialized Stout Pro 150, Specialized Stout XC Pro | not listed |
| Rim | Hed Big Deal | not listed |
| Brake | SRAM Guide R | SRAM Guide RS |
| Grips | Specialized Sip Grip | not listed |
| Seatpost | Race Face Next SL | Bontrager Line |
| Saddle | Specialized Phenom Expert | Bontrager Montrose Elite |
| Frame | not listed | Trek OCLV |
| Fork | not listed | Bontrager Haru Pro |
| Bottom bracket | not listed | SRAM DUB |
| Wheelset | not listed | Trek Wampa |
| Headset | not listed | FSA IS2 |
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