Bikes up to 60% offWe monitor over 40,000 bikes daily to find the best prices

Today’s Deals
Bike Comparison
    MSRP
    Where to Buy
    $1

    At

    Category
    Fat
    5.3
    Frame
    Aluminum
    Carbon
    Wheels
    Aluminum
    Wheel Size
    26″
    Shimano Deore Hydraulic Disc
    X0, X9
    Drivetrain
    1 × 10
    Brand Site

    specialized.com

    Summary
    The Specialized Fatboy Comp is a 26″ aluminum frame rigid fat bike with ultra high-end components.

    Ask 99 Spokes

    Similar Bikes
    Insights
    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)

    20 mph

    Fatboy Comp

    Highest gear

    (descending)

    Geometry
    Specs
    Frame

    Specialized M4 aluminum, fully-butted tubing w/ smooth welds, tapered head tube, post-mount disc dropouts, 190mm rear hub spacing, replaceable alloy derailleur hanger

    BB StandardPF30, 100mm, Press Fit

    Fork

    Specialized FACT carbon, full monocoque, tapered steerer, 135mm hub spacing, open QR dropouts

    Bottom Bracket

    PF30, 100mm, press-fit

    Headset

    1-1/8"" upper, 1-1/2"" lower, threadless, Campy style, cartridge bearings

    Stem

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

    Handlebar

    Specialized XC, butted 6061 alloy, 8-degree backsweep, 6-degree upsweep, 10mm rise, 31.8mm

    Saddle

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

    Seatpost

    Alloy, 2-bolt, 12.5mm offset, 30.9mm, anti-corrosion hardware

    TypeRigid

    Pedals

    Specialized Bennies, 6061 alloy body, sealed cartridge, 4.5mm removable pins

    Grips

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

    Groupset
    Rear Derailleur

    SRAM X0 Type 2.1, 10-speed, long cage

    Crank

    Race Face Turbine Cinch, PF30 BB, 100mm spindle, 28T direct mount ring

    Shifters

    SRAM X9, 10-speed, trigger

    Cassette

    Custom Sunrace, wide range, 10-speed, 11-40t

    Chain

    KMC X10L, 10-speed, w/ reusable MissingLink

    Brakes

    Front: Shimano Deore, hydraulic disc, dual piston, resin pads, Ice-Tech rotor, Rear: Shimano Deore, hydraulic disc, dual piston, resin pads, Ice-Tech rotor

    TypeShimano Deore Hydraulic Disc

    Brake Levers

    Shimano, hydraulic, reach adjust

    Wheels
    Rims

    Specialized Stout XC 90, disc, alloy, single wall, 90mm wide, sleeve joint, hookless design, 32h

    Spokes

    Stainless, butted, 2.0/1.8/2.0mm, black

    Front Hub

    Specialized Stout XC 135, Hi Hi disc, alloy, sealed cartridge bearings, QR, 32h

    Rear Hub

    Specialized Stout XC 190, Hi Hi disc, alloy, sealed cartridge bearings, QR, 32h

    Tires

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

    Riders Also Compared