2018 Specialized Fatboy 20

2018 Specialized Fatboy 20
Summary
MSRPUS$ 770
Wheel Size20″
FrameAluminum
SuspensionRigid
Gearing1 × 9
Drivetrain
SRAM X4
Brand
Specialized
Description

Specialized’s 2018 Fatboy 20 is a modest component level aluminum frame fatbike bike.

Build
FrameFully butted Specialized A1 Premium Aluminum, ZeroStack head tube, 100mm-wide threaded bottom bracket, 170mm rear hub spacing
ForkSpecialized A1 Premium Aluminum, 1-1/8"" alloy steerer
Bottom BracketSquare taper, 100x151.5mm, sealed bearings
StemAlloy, 7-degree rise, 31.8mm clamp
HandlebarSpecialized, alloy, 9-degree backsweep, 4-degree upsweep, 680mm width, 31.8mm
SaddleSpecialized Youth, steel rails
SeatpostAlloy, single-bolt, 27.2mm
PedalsPlatform
GripsSpecialized Body Geometry XCT, lock-on
Components
Rear DerailleurSRAM X4, long cage, 6-/7-/8-speed
Crank9-speed, 28T chainring w/ chainguard
CassetteSunrace, 9-Speed, 11-36t
ChainKMC X9, 9-speed w/ reusable MissingLink™
BrakesTektro Aries, mechanical disc, organic pads, 160mm rotor
Wheels
Rims20"" disc, alloy construction, 68mm internal width, 32h
SpokesStainless, 14g
Front HubStout 135, loose ball bearings, 10x135 QR, 32h
Rear HubStout 170, loose ball bearings, 9-/10-speed cassette body, 10x170mm QR, 32h
TiresGround Control Fat, 60 TPI, wire bead, 20x4.0""
Gearing
1 × 99 speed
2018 Specialized Fatboy 20
Category Average Virtual Bike

The 2018 Fatboy 20 is easier to ride up hills than similar bikes.

The 2018 Fatboy 20 is geared about the same as similar bikes for riding downhill.

Geometry

Oh snap! This frame was drawn from the actual bike geometry measurements. Roll over the table below to highlight frame dimensions.

Size
Stack464
Reach319
Top Tube Length470
Seat Tube Angle72.0
Seat Tube Length280
Head Tube Angle69.0
Head Tube Length120
Chainstay Length390
BB Drop25
BB Height264
Front Center526
Wheelbase914
Standover Height583
🐐 Measurements listed in millimeters and degrees
Replacement Parts
Summary
MSRPUS$ 770
Wheel Size20″
FrameAluminum
SuspensionRigid
Gearing1 × 9
Drivetrain
SRAM X4
Brand
Specialized
Gearing
1 × 99 speed
2018 Specialized Fatboy 20
Category Average Virtual Bike

The 2018 Fatboy 20 is easier to ride up hills than similar bikes.

The 2018 Fatboy 20 is geared about the same as similar bikes for riding downhill.

Replacement Parts
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