Bike Comparison
    MSRP
    $770
    $800
    $1,920
    $3,220
    Where to Buy
    $1

    At

    $1

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    $1

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    Category
    FatFatFatFat
    2.6
    2.6
    4.3
    6.0
    AluminumAluminumAluminumCarbon
    Fork
    AluminumAluminumCarbonCarbon
    Wheels
    AluminumAluminumAluminumAluminum
    Wheel Size
    20″24″26″26″
    Brakes
    Mechanical DiscMechanical DiscHydraulic DiscHydraulic Disc
    Groupset
    X4X4NX, Race FaceGX Eagle, Race Face
    Drivetrain
    1 × 91 × 91 × 111 × 12
    Brand Site

    specialized.com

    specialized.com

    specialized.com

    specialized.com

    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Terrain
    easyextreme
    Handling
    nimblestable
    Fatboy
    Fatboy Comp Carbon
    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)

    17 mph

    Fatboy 20

    21 mph

    Fatboy 24

    20 mph

    Fatboy

    23 mph

    Fatboy Comp Carbon

    Highest gear

    (descending)

    Spec Level

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

    Geometry
    Specs
    Frame

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

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

    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 rear thru-axle

    Fork

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

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

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

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

    Bottom Bracket

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

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

    Race Face, threaded BSA

    Race Face, PF30

    Headset

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

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

    Stem

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

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

    Specialized, 3D-forged alloy, 4-bolt, 7-degree rise

    Specialized Trail, 3D-forged alloy, 4-bolt, 6-degree rise

    Handlebar

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

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

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

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

    Saddle

    Specialized Youth, steel rails

    Specialized Youth, steel rails

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

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

    Seatpost

    Alloy, single bolt, 27.2mm

    Alloy, single bolt, 27.2mm

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

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

    Pedals

    Platform

    Platform

    Specialized Dirt

    Specialized Dirt

    Grips

    Specialized Body Geometry Women's XCT, lock-on

    Specialized Body Geometry Women's XCT, lock-on

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

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

    Groupset
    Rear Derailleur

    SRAM X4, long cage

    SRAM X4, long cage

    SRAM NX, 11-speed

    SRAM GX Eagle, 12-speed

    Crank

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

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

    Race Face Ride, Steel, 28T

    Race Face Next R, Alloy, 30T

    Shifters

    SRAM X4, 9-speed, trigger

    SRAM X4, 9-speed, trigger

    SRAM NX, 11-speed

    SRAM GX Eagle, trigger, 12-speed

    Cassette

    Sunrace, 9-speed, 11-36t

    Sunrace, 9-speed, 11-36t

    SRAM PG-1130, 11-speed, 11-42t

    SRAM GX Eagle, 12-speed, 10-50t

    Chain

    KMC X9, 9-speed w/ reusable MissingLink™

    KMC X9, 9-speed w/ reusable MissingLink™

    KMC X11EPT, 11-speed, anti-corrosion coating w/ reusable Missing Link™

    SRAM GX Eagle, 12-speed

    Brakes

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

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

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

    Front: SRAM Level TL, hydraulic Disc, 200/180mm, Rear: SRAM Level TL, hydraulic disc, 180/160mm

    Brake Levers

    Tektro, Jr V-brake

    Tektro, Jr V-brake

    Wheels
    Rims

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

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

    Stout XC 80, 26", alloy, 76mm internal width, disc-specific

    Stout XC 80, 26", alloy, 76mm internal width, disc-specific

    Spokes

    Stainless, 14g

    Stainless, 14g

    Stainless, 14g

    Stainless, 14g

    Front Hub

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

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

    Stout Pro 150, sealed cartridge bearings, 6-bolt disc, 15x150mm, 32h

    Stout Pro 150, sealed cartridge bearings, 6-bolt disc, 15x150mm, 32h

    Rear Hub

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

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

    Stout Pro 197, sealed cartridge bearings, 6-bolt disc, 12x197mm, 32h

    Stout Pro 197, sealed cartridge bearings, 6-bolt disc, 12x197mm, SRAM XD driver body, 32h

    Tires

    Front: Ground Control Fat, 60 TPI, wire bead, 20x4.0", Rear: Ground Control Fat, 60 TPI, wire bead, 20x4.0"

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

    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"

    Front: Ground Control Fat, Control casing, 120 TPI, Aramid folding bead, 2Bliss Ready, 26x4.0", Rear: Ground Control Fat, Control casing, 120 TPI, Aramid folding bead, 2Bliss Ready, 26x4.0"

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