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

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

    At

    Category
    Fat
    4.7
    Frame
    Aluminum
    Carbon
    Wheels
    Aluminum
    Wheel Size
    26″
    Tektro Gemini Hydraulic Disc
    X7
    Drivetrain
    1 × 10
    Brand Site

    specialized.com

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

    Ask 99 Spokes

    Similar Bikes
    Insights
    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)

    32 km/h

    Fatboy

    Highest gear

    (descending)

    Geometry
    Specs
    Frame

    M5 Aluminum, fully butted w/smooth welding, tapered head tube and seat tube, 100mm of travel, forged post mount 160mm disc drop outs, internal routing, forged bottom bracket shell, 197x12mm thru-axle rear

    BB StandardBSA, 100mm, Threaded

    Fork

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

    Bottom Bracket

    BSA, 100mm, threaded

    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

    TypeRigid

    Pedals

    Specialized Dirt Pedals

    Grips

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

    Groupset
    Rear Derailleur

    SRAM X7 Type 2.1, long cage, 10-speed

    Crank

    RaceFace Aeffect Cinch, 28T chainring, 11-speed, threaded BB

    Shifters

    SRAM X7, 10-speed, trigger

    Cassette

    Sunrace, 10-speed, 11-42t

    Chain

    10-speed, extra lightweight hollow outer links w/reusable Missing Link # CL559R

    Brakes

    Front: Tektro Gemini, hydraulic disc, resin pads, i-Spec compatible, 180mm rotor, Rear: Tektro Gemini, hydraulic disc, resin pads, i-Spec compatible, 160mm rotor

    TypeTektro Gemini Hydraulic Disc

    Wheels
    Rims

    Specialized 26"" disc front, 21mm depth, 86mm internal width, 32h

    Spokes

    Stainless, black, 14g

    Front Hub

    Specialized Stout XC, alloy disc, double-sealed cartridge bearings, 15x150mm thru-axle, 32h

    Rear Hub

    Stout XC 197, disc alloy, sealed cartridge bearings, 12x197mm thru-axle, 32h

    Tires

    Front: Ground Control Fat, Control casing, 120 TPI, Aramid folding bead, 2Bliss Ready, 26x4.6"", Rear: Ground Control Fat, Control casing, 120 TPI, Aramid folding bead, 2Bliss Ready, 26x4.6""

    Riders Also Compared