2014 Trek Farley vs 2015 Specialized Fatboy Frameset
The XL is the Specialized Fatboy Frameset size closest to your XL Trek Farley. 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 Fatboy Frameset
Compared with the Trek Farley in XL, the Specialized Fatboy Frameset in XL places the top of the head tube 16 mm higher and 3 mm further forward, relative to the bottom bracket. Its wheelbase is 13 mm longer, which can contribute to stability at speed.
- Frame stack
- +16 mm
- Higher front end
- Frame reach
- +3 mm
- Longer frame reach
- Wheelbase
- +13 mm
- Longer: steadier at speed
- Head angle
- +0.5°
- Steeper: sharper steering
- Chainstays
- +15 mm
- Longer: more planted
The two frames
We can't draw these frames yet. The Trek Farley numbers we have for size XL are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Farley XL | Specialized Fatboy Frameset XL | Difference |
|---|---|---|---|
| Reach | 455 | 458mm | +3 mm |
| Stack | 613 | 629mm | +16 mm |
| Head tube angle | 70.0° | 70.5° | +0.5° |
| Effective top tube | 643 | 650mm | +7 mm |
| Chainstay length | 440 | 455mm | +15 mm |
| Wheelbase | 1141 | 1154mm | +13 mm |
| BB drop | 55 | 60mm | +5 mm |
| BB height | 313 | 315mm | +2 mm |
| Standover | 832 | 849mm | +17 mm |
| Seat tube length | 521 | 533mm | +12 mm |
| Head tube length | 120 | 150mm | +30 mm |
| Seat tube angle | not listed | 73° |
Differences are the Specialized Fatboy Frameset minus the Trek Farley. Full charts: 2014 Trek Farley, 2015 Specialized Fatboy Frameset.
Where each sits in its class
Trek FarleySpecialized Fatboy Frameset
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 | Trek FarleyFarley | Specialized Fatboy FramesetFrameset |
|---|---|---|
| Frame | Trek Alpha Platinum | not listed |
| Shifter | SRAM X7 | not listed |
| Derailleur | SRAM X-0, SRAM X-9 | not listed |
| Cassette | Shimano HG62 | not listed |
| Tire | Trek Surly Knard | not listed |
| Brake | Avid DB 3 | not listed |
| Headset | FSA IS2 | not listed |
| Seatpost | Bontrager Rhythm Elite | not listed |
| Saddle | Bontrager Evoke 2 | not listed |
| Crankset | not listed | e*thirteen TRS+ |
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