Quiver

2018 Specialized Fatboy Comp Carbon vs 2020 Trek Farley 9.8

The S is the Trek Farley 9.8 size closest to your S Specialized Fatboy Comp 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 9.8

Compared with the Specialized Fatboy Comp Carbon in S, the Trek Farley 9.8 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 Comp Carbon (S) and 2020 Trek Farley 9.8 (S), lined up at the bottom bracketBoth frames drawn to scale. The Specialized Fatboy Comp Carbon is drawn in full with its measurements, and the Trek Farley 9.8 is the colored outline on top.J 1088

Specialized Fatboy Comp Carbon, STrek Farley 9.8, SDrawn to scale and lined up at the bottom bracket.

Geometry side by side

MeasurementSpecialized Fatboy Comp Carbon STrek Farley 9.8 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 9.8 minus the Specialized Fatboy Comp Carbon. Full charts: 2018 Specialized Fatboy Comp Carbon, 2020 Trek Farley 9.8.

Where each sits in its class

Specialized Fatboy Comp CarbonTrek Farley 9.8

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 Comp CarbonComp CarbonTrek Farley 9.89.8
ShifterSRAM GX EagleSRAM GX Eagle
DerailleurSRAM GX EagleSRAM GX Eagle
CassetteSRAM GX EagleSRAM GX Eagle
ChainSRAM GX EagleSRAM GX Eagle
CranksetRace Face NextTruVativ Stylo
TireSpecialized Ground Control FatBontrager Barbegazi
HubSpecialized Stout Pro 150, Specialized Stout Pro 197not listed
RimSpecialized Stout XC 80not listed
BrakeSRAM Level TLSRAM Guide RS
HandlebarSpecialized Stout XCnot listed
GripsSpecialized Sip Gripnot listed
SaddleSpecialized Phenom CompBontrager Montrose Elite
Framenot listedTrek OCLV
Forknot listedBontrager Haru Pro
Bottom bracketnot listedSRAM DUB
Wheelsetnot listedTrek Wampa
Headsetnot listedFSA IS2
Seatpostnot listedBontrager Line

Know what is on every bike.

Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.

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