2013 Salsa Beargrease vs 2015 Specialized Fatboy Frameset
The M is the Specialized Fatboy Frameset size closest to your M 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 Frameset
Compared with the Salsa Beargrease in M, the Specialized Fatboy Frameset in M places the top of the head tube 11 mm lower and about as far forward, relative to the bottom bracket.
- Frame stack
- −11 mm
- Lower front end
- Frame reach
- +2 mm
- About the same 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 M are missing the wheelbase. The numbers below still compare.
Geometry side by side
| Measurement | Salsa Beargrease M | Specialized Fatboy Frameset M | Difference |
|---|---|---|---|
| Reach | 418.2 | 420mm | +2 mm |
| Stack | 611.1 | 600mm | −11 mm |
| Head tube angle | 69.5 | 70.5° | +1.0° |
| Seat tube angle | 73 | 73° | ±0.0° |
| Effective top tube | 605 | 603mm | −2 mm |
| Chainstay length | 455 | 455mm | ±0 mm |
| BB drop | 63 | 60mm | −3 mm |
| Standover | 748.1 | 793mm | +45 mm |
| Seat tube length | not listed | 445mm | |
| Fork length | 468 | not listed | |
| Head tube length | not listed | 120mm | |
| Wheelbase | not listed | 1105mm | |
| BB height | not listed | 315mm |
Differences are the Specialized Fatboy Frameset minus the Salsa Beargrease. Full charts: 2013 Salsa Beargrease, 2015 Specialized Fatboy Frameset.
Where each sits in its class
Salsa BeargreaseSpecialized 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 | Salsa Beargrease | Specialized Fatboy FramesetFrameset |
|---|---|---|
| Crankset | not listed | e*thirteen TRS+ |
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