Quiver

2019 Specialized Fatboy vs 2021 Trek Farley C Frameset

The Trek Farley C Frameset size closest to your M is the M. Compare the M instead

What changes on the Trek Farley C Frameset

Compared with the Specialized Fatboy in M, the Trek Farley C Frameset in XL places the top of the head tube 17 mm higher and 34 mm further forward, relative to the bottom bracket. Its wheelbase is 58 mm longer, which can contribute to stability at speed.

Frame stack
+17 mm
Higher front end
Frame reach
+34 mm
Longer frame reach
Wheelbase
+58 mm
Longer: steadier at speed
Head angle
−2.0°
Slacker: calmer steering
Chainstays
±0 mm
About the same

The two frames

2019 Specialized Fatboy (M) and 2021 Trek Farley C Frameset (XL), lined up at the bottom bracketBoth frames drawn to scale. The Specialized Fatboy is drawn in full with its measurements, and the Trek Farley C Frameset is the colored outline on top.J 1113

Specialized Fatboy, MTrek Farley C Frameset, XLDrawn to scale and lined up at the bottom bracket.

Geometry side by side

MeasurementSpecialized Fatboy MTrek Farley C Frameset XLDifference
Reach420mm454+34 mm
Stack602mm619+17 mm
Head tube angle71°69.0°−2.0°
Seat tube angle73mm73.0°±0.0°
Effective top tube604mm644+40 mm
Chainstay length455mm455±0 mm
Wheelbase1113mm1171+58 mm
BB drop60mm67+7 mm
BB height316mm321+5 mm
Standover786mm774−12 mm
Seat tube length434mm521+87 mm
Fork length496mmnot listed
Head tube length94mm120+26 mm

Differences are the Trek Farley C Frameset minus the Specialized Fatboy. Full charts: 2019 Specialized Fatboy, 2021 Trek Farley C Frameset.

Where each sits in its class

Specialized FatboyTrek Farley C Frameset

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 FatboyFatboyTrek Farley C FramesetFarley C Frameset
ShifterSRAM NXnot listed
DerailleurSRAM NXnot listed
CassetteSRAM PG-1130not listed
ChainKMC X11 EPTnot listed
TireSpecialized Ground Control Fatnot listed
HubSpecialized Stout Pro 150, Specialized Stout Pro 197not listed
RimSpecialized Stout XC 80not listed
BrakeSRAM Level Tnot listed
HandlebarSpecialized Stoutnot listed
GripsSpecialized Sip Gripnot listed
SaddleSpecialized Henge Compnot listed
Framenot listedTrek OCLV
Forknot listedTrek Farley
Headsetnot listedFSA IS2

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