2013 Salsa Beargrease vs 2015 Specialized Fatboy SL
The XL is the Specialized Fatboy SL size closest to your XL Salsa Beargrease. 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 SL
Compared with the Salsa Beargrease in XL, the Specialized Fatboy SL in XL places the top of the head tube 10 mm lower and 13 mm further forward, relative to the bottom bracket.
- Frame stack
- −10 mm
- Lower front end
- Frame reach
- +13 mm
- Longer frame reach
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- +1.0°
- Steeper: sharper steering
- Chainstays
- ±0 mm
- About the same
The two frames
We can't draw these frames yet. The Salsa Beargrease numbers we have for size XL are missing the wheelbase. The numbers below still compare.
Geometry side by side
| Measurement | Salsa Beargrease XL | Specialized Fatboy SL XL | Difference |
|---|---|---|---|
| Reach | 444.6 | 458mm | +13 mm |
| Stack | 639.2 | 629mm | −10 mm |
| Head tube angle | 69.5 | 70.5° | +1.0° |
| Seat tube angle | 73 | 73° | ±0.0° |
| Effective top tube | 640 | 650mm | +10 mm |
| Chainstay length | 455 | 455mm | ±0 mm |
| BB drop | 63 | 60mm | −3 mm |
| Standover | 827.2 | 849mm | +22 mm |
| Seat tube length | 483 | 533mm | +50 mm |
| Fork length | 468 | not listed | |
| Head tube length | 150 | 150mm | ±0 mm |
| Wheelbase | not listed | 1154mm | |
| BB height | not listed | 315mm |
Differences are the Specialized Fatboy SL minus the Salsa Beargrease. Full charts: 2013 Salsa Beargrease, 2015 Specialized Fatboy SL.
Where each sits in its class
Salsa BeargreaseSpecialized Fatboy SL
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 | Salsa Beargrease | Specialized Fatboy SLSL |
|---|---|---|
| Shifter | not listed | SRAM XX1 |
| Derailleur | not listed | SRAM XX1 |
| Cassette | not listed | SRAM XX1 |
| Chain | not listed | KMC X11L |
| Crankset | not listed | Race Face Next SL |
| Tire | not listed | Specialized Ground Control Fat |
| Hub | not listed | Specialized Stout XC 135, Specialized Stout XC 190 |
| Rim | not listed | Hed Big Deal |
| Brake | not listed | Magura MT8 |
| Stem | not listed | Specialized Stout XC |
| Grips | not listed | Specialized Sip Grip |
| Saddle | not listed | Specialized Phenom Expert |
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