Bike Comparison
    Fatboy2018 Specialized
    Recommended
    MSRP
    $1,920
    Where to Buy
    —
    $1

    At

    Category
    		Fat
    4.4
    Frame
    		Aluminum
    Fork
    		Carbon
    Wheels
    		Aluminum
    Wheel Size
    		26″
    Brakes
    		Hydraulic Disc
    Motor
    Battery
    Groupset
    		NX, Race Face
    Drivetrain
    		1 × 11
    Brand Site

    specialized.com

    Summary
    		The Specialized Fatboy is a 26″ aluminum frame rigid fat bike with upper mid-range components.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Terrain
    easyextreme
    Handling
    nimblestable
    Fatboy
    Other Fat bikes
    Gear Range

    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

    Highest gear

    (descending)

    Spec Level

    Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

    Geometry
    Specs
    Fatboy2018 Specialized
    Frame

    Specialized M5 Aluminum, fully butted w/Smooth Welds, tapered head tube and seat tube, forged post mount 160mm disc dropouts, internal routing, forged bottom bracket shell, 197x12mm thru-axle rear

    BB Standard: BSA, 100mm, Threaded

    Fork

    Specialized FACT carbon, 46mm offset, tapered steerer, 150mm axle

    Bottom Bracket

    Threaded BSA

    Stem

    Specialized Alloy, 3D forged, 4-bolt, 6-degree

    Handlebar

    Stout Pro Riser, double-butted alloy, 9-degree backsweep, 5-degree upsweep, 15mm rise, 750mm width, 31.8mm

    Saddle

    Body Geometry Henge Comp, hollow Cr-Mo rails, 143mm

    Seatpost

    Specialized 2-bolt head, forged alloy, 8mm offset, micro-adjust, 30.9mm

    Pedals

    Specialized Dirt

    Grips

    Specialized Sip Grip, half-waffle, S/M: regular thickness, L/XL: XL thickness

    Groupset
    Rear Derailleur

    SRAM NX, long cage, 11-speed

    Crank

    Raceface Aeffect crank, BSA, Steel, 30T

    Shifters

    SRAM NX, trigger, 11-speed

    Cassette

    SRAM NX, 11-speed, 11-42t

    Chain

    KMC X11, 11-speed, anti-corrosion coating, w/ MissingLink™

    Brakes

    Front: SRAM Level T hydraulic disc, organic pads, 200/180mm rotors, Rear: SRAM Level T hydraulic disc, organic pads, 180/160mm rotors

    Wheels
    Rims

    Stout XC 80, 26", 76mm internal width, 32h, tubeless ready

    Spokes

    Stainless, 14g

    Front Hub

    Stout Pro 150, sealed cartridge bearings, 6-bolt disc, 15x1150mm, 32h

    Rear Hub

    Sealed cartridge bearings, 6-bolt disc, 19x197mm axle, 10-speed alloy freehub, 32h

    Tires

    Front: Ground Control Fat, Control casing, 120 TPI, Aramid folding bead, 26x4.6", Rear: Ground Control Fat, Control casing, 120 TPI, Aramid folding bead, 26x4.6"

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