Quiver

2018 Specialized Fatboy Expert Carbon vs 2020 Trek Farley C Frameset

The S is the Trek Farley C Frameset size closest to your S Specialized Fatboy Expert Carbon. 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 Trek Farley C Frameset

Compared with the Specialized Fatboy Expert Carbon in S, the Trek Farley C Frameset in S places the top of the head tube at about the same height and 12 mm further back, relative to the bottom bracket. Its wheelbase is 4 mm longer, which can contribute to stability at speed.

Frame stack
−1 mm
About the same height
Frame reach
−12 mm
Shorter frame reach
Wheelbase
+4 mm
Longer: steadier at speed
Head angle
−1.5°
Slacker: calmer steering
Chainstays
±0 mm
About the same

The two frames

2018 Specialized Fatboy Expert Carbon (S) and 2020 Trek Farley C Frameset (S), lined up at the bottom bracketBoth frames drawn to scale. The Specialized Fatboy Expert Carbon is drawn in full with its measurements, and the Trek Farley C Frameset is the colored outline on top.J 1088

Specialized Fatboy Expert Carbon, STrek Farley C Frameset, SDrawn to scale and lined up at the bottom bracket.

Geometry side by side

MeasurementSpecialized Fatboy Expert Carbon STrek Farley C Frameset SDifference
Reach395mm383−12 mm
Stack602mm601−1 mm
Head tube angle70.5°69.0°−1.5°
Seat tube angle73°73.0°±0.0°
Effective top tube579mm567−12 mm
Chainstay length455mm455±0 mm
Wheelbase1088mm1092+4 mm
BB drop60mm67+7 mm
BB height307mm321+14 mm
Standover738.5mm763+25 mm
Seat tube length394mm394±0 mm
Fork length496mmnot listed
Head tube length94mm100+6 mm

Differences are the Trek Farley C Frameset minus the Specialized Fatboy Expert Carbon. Full charts: 2018 Specialized Fatboy Expert Carbon, 2020 Trek Farley C Frameset.

Where each sits in its class

Specialized Fatboy Expert CarbonTrek 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 Fatboy Expert CarbonExpert CarbonTrek Farley C FramesetFarley C Frameset
ShifterSRAM X01not listed
DerailleurSRAM X01not listed
CassetteSRAM XG-1180not listed
ChainSRAM XX1not listed
CranksetRace Face Next SLnot listed
TireSpecialized Ground Control Fatnot listed
HubSpecialized Stout Pro 150, Specialized Stout XC Pronot listed
RimHed Big Dealnot listed
BrakeSRAM Guide Rnot listed
GripsSpecialized Sip Gripnot listed
SeatpostRace Face Next SLnot listed
SaddleSpecialized Phenom Expertnot listed
Framenot listedTrek OCLV
Forknot listedBontrager Haru Pro
Headsetnot listedFSA IS2

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