2019 Specialized

Fatboy 24

A 24″ aluminum frame rigid fat bike with mid-range components and mechanical disc brakes.
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MSRP$800
FrameAluminum
SuspensionRigid
ForkAluminum
Wheels24″ Aluminum
Drivetrain1 × 9
GroupsetX4
BrakesMechanical Disc
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

21 mph

Fatboy 24

23 mph

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Highest gear

(descending)

Reviews
BikeRadar
Specialized Fatboy Comp Carbon review

May 2016 · Seb Stott

Despite a couple of component niggles, the Fatboy has huge potential to dominate any fat bike race. Buy if you want a fast, capable and well-appointed fatty to race with

Highs
  • Light, speedy, well finished and perfect for mile-munching

Lows
  • You'll want to switch the stock tyres for snow, 203mm rotors are overkill, gearing is a little narrow

Read Review

Enduro Mountainbike Magazine
Specialized Fatboy 20 Review: Kids Bike on Steroids

Mar 2016 · Evan Phillips

Fatbikes are polarizing, especially for our kids. But are they any good for lightweight shredders? We find out with the Specialized Fatboy 20.

Read Review

Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

Specialized A1 Premium Aluminum, fully-butted w/ smooth welds, ZeroStack head tube, 170mm rear hub spacing, replaceable alloy derailleur hanger

Fork

Specialized A1 Premium Aluminum, 1-1/8" alloy steerer

Bottom Bracket

Square taper, sealed cartridge bearings, 100mm shell, 164mm axle

Headset

1-1/8", threadless, ZeroStack, semi-cartridge bearings

Stem

Specialized, 3D-forged alloy, 4-bolt, 6-degree rise, 31.8mm clamp

Handlebar

Specialized, double-butted 6061 alloy, 9-degree backsweep, 4-degree upsweep, 31.8mm, 720mm width

Saddle

Specialized Youth, steel rails

Seatpost

Alloy, single bolt, 27.2mm

TypeRigid

Pedals

Platform

Grips

Specialized Body Geometry Women's XCT, lock-on

Groupset
Rear Derailleur

SRAM X4, long cage

Crank

Forged alloy, 32T, w/ chainguard, Alloy, 28T

Shifters

SRAM X4, 9-speed, trigger

Cassette

Sunrace, 9-speed, 11-36t

Chain

KMC X9, 9-speed w/ reusable MissingLink™

Brakes

Front: Tektro Aries, mechanical disc, organic pads, 160mm rotor, Rear: Tektro Aries, mechanical disc, organic pads, 160mm rotor

TypeMechanical Disc

Brake Levers

Tektro, Jr V-brake

Wheels
Rims

24" disc, alloy construction, 68mm internal width, 32h

Spokes

Stainless, 14g

Front Hub

Stout 135, loose ball bearings, 10x135 QR, 32h

Rear Hub

Specialized 170, Hi Hi disc, alloy, double-sealed loose ball bearings, QR, 32h

Tires

Front: Ground Control Fat, 60 TPI, wire bead, 24x4.0", Rear: Ground Control Fat, 60 TPI, wire bead, 24x4.0"

Rider Notes
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Last updated April 8
Not listed for 1,467 days