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    Big Fat Dummy2017 Surly
    Recommended
    MSRP
    Where to Buy
    —
    $1

    At

    Category
    		Long Tail Cargo
    5.8
    Frame
    		Steel
    		Steel
    Wheels
    		Aluminum
    Wheel Size
    		26″
    		SRAM Level T Hydraulic Disc
    		GX
    Drivetrain
    		2 × 11
    Brand Site
    Summary
    		The Surly Big Fat Dummy is a 26″ steel frame long tail cargo bike with upper mid-range components and sram level t hydraulic disc brakes.

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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)

    25 mph

    Big Fat Dummy

    Highest gear

    (descending)

    Geometry
    Specs
    Big Fat Dummy2017 Surly
    Frame

    Surly 4130 CroMoly steel. Main triangle double-butted. TIG-welded cargo specific engineered for stiffness and durability

    BB Standard: BSA, 100mm, Threaded

    Fork

    Surly Wednesday, Tapered straight blade 4130 CroMoly. 468mm axle to crown, 47mm offset. 51mm I.S. front standard disc mount, 150mm x 15mm thru-axle dropouts (axle included), 100mm suspension fork compatible

    Bottom Bracket

    100mm wide, threaded English (1.37˝ x 24t)

    Headset

    Cane Creek 40 series

    Stem

    H.L. 31.8mm clamp 4-bolt

    Handlebar

    Answer ProTaper

    Saddle

    WTB Volt

    Seatpost

    H.L. 9mm offset 2 bolt

    Type: Rigid

    Groupset
    Rear Derailleur

    SRAM GX 2x11 long cage type 2.1

    Front Derailleur

    SRAM GX 2x11 high direct mount

    Crank

    Race Face Aeffect 36/22

    Shifters

    SRAM GX 2x11

    Cassette

    Sunrace 11s 11/42

    Chain

    KMC X11 anti rust

    Brakes

    SRAM Level T

    Type: SRAM Level T Hydraulic Disc

    Brake Levers

    SRAM Level T

    Wheels
    Rims

    Surly My Other Brother Darryl

    Front Hub

    Salsa 150x15 32h

    Rear Hub

    Salsa 197x12 32h

    Tires

    Surly Big Fat Larry (front), Nate (rear)

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