2020 Specialized Fatboy vs 2022 Salsa Mukluk microSHIFT ADVENT X
The XL is the Salsa Mukluk microSHIFT ADVENT X size closest to your XL Specialized Fatboy. 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 Salsa Mukluk microSHIFT ADVENT X
Compared with the Specialized Fatboy in XL, the Salsa Mukluk microSHIFT ADVENT X in XL places the top of the head tube at about the same height and 6 mm further forward, relative to the bottom bracket. Its wheelbase is 11 mm longer, which can contribute to stability at speed.
- Frame stack
- −2 mm
- About the same height
- Frame reach
- +6 mm
- Longer frame reach
- Wheelbase
- +11 mm
- Longer: steadier at speed
- Head angle
- −2.0°
- Slacker: calmer steering
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
Specialized Fatboy, XLSalsa Mukluk microSHIFT ADVENT X, XLDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Fatboy XL | Salsa Mukluk microSHIFT ADVENT X XL | Difference |
|---|---|---|---|
| Reach | 458mm | 464.4 | +6 mm |
| Stack | 632mm | 630.1 | −2 mm |
| Head tube angle | 71° | 69.0 | −2.0° |
| Seat tube angle | 73mm | 73.0 | ±0.0° |
| Chainstay length | 455mm | 440.0 - 457.0 | |
| Wheelbase | 1161mm | 1172.1 | +11 mm |
| BB drop | 60mm | 63.0 | +3 mm |
| BB height | 312mm | not listed | |
| Standover | 847mm | 773.9 | −73 mm |
| Seat tube length | 520mm | 558.0 | +38 mm |
| Fork length | 496mm | 483.0 | −13 mm |
| Head tube length | 125mm | 140.0 | +15 mm |
| Effective top tube | not listed | 657.0 |
Differences are the Salsa Mukluk microSHIFT ADVENT X minus the Specialized Fatboy. Full charts: 2020 Specialized Fatboy, 2022 Salsa Mukluk microSHIFT ADVENT X.
Where each sits in its class
Specialized FatboySalsa Mukluk microSHIFT ADVENT X
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 FatboyFatboy | Salsa Mukluk microSHIFT ADVENT X |
|---|---|---|
| Shifter | SRAM SX Eagle | not listed |
| Derailleur | SRAM SX Eagle | not listed |
| Chain | SRAM SX Eagle | not listed |
| Crankset | SRAM X01 Eagle | not listed |
| Tire | Maxxis Minion FBF, Maxxis Minion FBR | not listed |
| Hub | Specialized Stout Pro 150, Specialized Stout Pro 197 | not listed |
| Rim | Specialized Stout XC 80 | not listed |
| Brake | SRAM T | not listed |
| Handlebar | Specialized Stout | not listed |
| Grips | Specialized Sip Grip | not listed |
| Saddle | Specialized Bridge | not listed |
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app



