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    MSRP
    Where to Buy
    $1

    At

    Category
    Fat
    5.5
    Frame
    Aluminum
    RockShox Bluto RL
    Wheels
    Aluminum
    Wheel Size
    26″
    Tektro Gemini Hydraulic Disc
    X7
    Drivetrain
    1 × 10
    Brand Site

    specialized.com

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

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    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 Trail

    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, Press Fit

    Fork

    RockShox Bluto RL, Solo Air spring, Motion Control damping, external rebound adjust, mag lowers, tapered alloy steerer, 32mm alloy stanchions, disc mount, QR 15mm thru-axle for 150mm hub spacing

    Spring TypeAir

    Bottom Bracket

    Samox, PF30, sealed cartridge

    Headset

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

    Stem

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

    Handlebar

    Specialized Stout XC, double-butted 6061 alloy, 9-degree backsweep, 5-degree upsweep, 15mm rise, 31.8mm

    Saddle

    Body Geometry Henge Sport, steel rails, 143mm

    Seatpost

    TranzX YSP02 dropper, infinite adjust, external cable routing, remote lever, 30.9mm, S: 100mm travel, M/L/XL: 120mm travel

    TypeDropper

    Pedals

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

    Grips

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

    Groupset
    Rear Derailleur

    SRAM X7 Type 2.1, 10-speed, long cage

    Crank

    Specialized Stout XC Pro, forged alloy, 30mm alloy spindle, 100mm spindle width, 28T, 76mm BCD spider

    Shifters

    SRAM X7, 10-speed, trigger

    Cassette

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

    Chain

    KMC X10L, 10-speed, w/ reusable MissingLink

    Brakes

    Front: Tektro Gemini, hydraulic disc, resin pads, I-spec compatible, Rear: Tektro Gemini, hydraulic disc, resin pads, I-spec compatible

    TypeTektro Gemini Hydraulic Disc

    Brake Levers

    Tektro Gemini, hydraulic, reach adjust, I-spec compatible

    Wheels
    Rims

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

    Spokes

    Stainless, 14g, black

    Front Hub

    Specialized Stout XC 150, Hi Hi disc, double-sealed cartridge bearings, 15mm thru-axle, 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""

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