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    Fatboy SL2015 Specialized
    Recommended
    MSRP
    Where to Buy
    —
    $1

    At

    Category
    		Fat
    6.9
    Frame
    		Aluminum
    		Carbon
    Wheels
    		Carbon
    Wheel Size
    		26″
    		Magura Hydraulic Disc
    		XX1
    Drivetrain
    		1 × 11
    Brand Site

    specialized.com

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

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    Similar Bikes
    Insights
    Ride Feel

    Based on frame geometry and build specs.

    Terrain
    easyextreme
    Handling
    nimblestable
    Fatboy SL
    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)

    23 mph

    Fatboy SL

    Highest gear

    (descending)

    Geometry
    Specs
    Fatboy SL2015 Specialized
    Frame

    Specialized M4 Premium Aluminum, fully butted w/ smooth welds, tapered headtube, post-mount disc dropouts, 190mm rear hub spacing, replaceable alloy derailleur hanger

    BB Standard: PF30, 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, Campy style, integrated sealed cartridge bearings

    Stem

    Specialized Stout XC, 3D forged alloy, 4-bolt, 6-degree rise, anti-corriosion hardware

    Handlebar

    Specialized flat, carbon, 8-degree backsweep, 31.8mm

    Saddle

    Body Geometry Phenom Expert, hollow Ti rails, 143mm

    Seatpost

    S-Works FACT carbon, 20mm offset, 27.2mm

    Type: Rigid

    Pedals

    Alloy, 1 pc. body, 9/16"", w/ reflectors

    Grips

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

    Groupset
    Rear Derailleur

    SRAM XX1, 11-speed, carbon cage

    Crank

    Race Face Next SL, PF30 BB, 100mm spindle, 30T, spiderless

    Shifters

    SRAM XX1, 11-speed, trigger

    Cassette

    SRAM XX1, 11-speed, 10-42

    Chain

    KMC X11L, 11-speed, w/ reusable MissingLink

    Brakes

    Front: Magura MT8, hydraulic disc, Hi Friction pad, carbon master cylinder, alloy caliper, Storm SL rotor, Rear: Magura MT8, hydraulic disc, Hi Friction pad, carbon master cylinder, alloy caliper, Storm SL rotor

    Type: Magura Hydraulic Disc

    Brake Levers

    Magura MT8, carbon lever

    Wheels
    Rims

    HED Big Deal, carbon, single wall, tubeless, 85mm wide, 32h

    Spokes

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

    Front Hub

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

    Rear Hub

    Specialized Stout XC 190, Hi Lo 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""

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