Quiver

2015 Specialized Fatboy vs 2013 Salsa Mukluk

The Salsa Mukluk size closest to your M is the M. Compare the M instead

What changes on the Salsa Mukluk

Compared with the Specialized Fatboy in M, the Salsa Mukluk in XL places the top of the head tube 34 mm higher and 26 mm further forward, relative to the bottom bracket.

Frame stack
+34 mm
Higher front end
Frame reach
+26 mm
Longer frame reach
Wheelbase
n/a
One of the bikes has no number for this
Head angle
−1.0°
Slacker: calmer steering
Chainstays
n/a
One of the bikes has no number for this

The two frames

2015 Specialized Fatboy (M)The Specialized Fatboy frame drawn to scale.J 1105

Only the Specialized Fatboy is drawn. The Salsa Mukluk numbers we have for size XL are missing the chainstay length.

Geometry side by side

MeasurementSpecialized Fatboy MSalsa Mukluk XLDifference
Reach420mm446.1+26 mm
Stack600mm634.2+34 mm
Head tube angle70.5°69.5−1.0°
Seat tube angle73°73±0.0°
Effective top tube603mm640+37 mm
Chainstay length455mmnot listed
Wheelbase1105mm1151.8 – 1168.8 mm
BB drop60mm60±0 mm
BB height315mmnot listed
Standover793mm825+32 mm
Seat tube length445mm482.6+38 mm
Head tube length120mm150+30 mm
Fork lengthnot listed468

Differences are the Salsa Mukluk minus the Specialized Fatboy. Full charts: 2015 Specialized Fatboy, 2013 Salsa Mukluk.

Where each sits in its class

Specialized FatboySalsa Mukluk

AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted

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.

PartSpecialized FatboyFatboySalsa Mukluk
ShifterSRAM Grip Shiftnot listed
DerailleurSRAM X-7not listed
ChainKMC X10Lnot listed
Cranksete*thirteen TRS+not listed
TireSpecialized Ground Control Fatnot listed
HubSpecialized Hi Lonot listed
RimSpecialized Fatboy SLnot listed
BrakeTektro Gemininot 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
A Transition Relay build sheet: frame, fork, shock and drivetrainThe Relay’s ride photo galleryThe Relay’s ride spectrum and 2D frame geometryThe garage: five bikes and 99 recorded partsA Specialized Tarmac SL8 road build sheet