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    Big Dummy2022 Surly
    Recommended
    MSRP
    $2,449
    Where to Buy
    —
    $1

    At

    Category
    		Long Tail Cargo
    3.4
    Frame
    		Steel
    		Steel
    Wheels
    		Aluminum
    Wheel Size
    		26″
    		Avid Mechanical Disc
    		microSHIFT Advent
    Drivetrain
    		1 × 9
    Brand Site

    surlybikes.com

    Summary
    		The Surly Big Dummy is a 26″ steel frame long tail cargo bike with mid-range components and avid mechanical 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)

    23 mph

    Big Dummy

    Highest gear

    (descending)

    Spec Level

    Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

    Geometry
    Specs
    Big Dummy2022 Surly
    Frame

    100% Surly Chromoly steel, Natch tubing, double-butted main triangle, TIG welded

    BB Standard: BSA, Threaded

    Tire Clearance: 2.5"

    Color: Bruised Ego Purple

    Fork

    100% Surly Chromoly steel, Natch tubing, double-butted tapered fork blades, TIG welded, E.D. coated

    Bottom Bracket

    Race Face BSA 24

    Headset

    Cane Creek 40 Series

    Stem

    Kalloy 31.8

    Handlebar

    Surly Terminal Bar

    Saddle

    Selle Italia X-Base

    Seatpost

    Kalloy 27.2

    Type: Rigid

    Groupset
    Rear Derailleur

    microSHIFT Advent 1x9 Speed, RD-M6195M

    Front Derailleur

    N/A

    Crank

    Race Face, 32t

    Shifters

    microSHIFT Advent Trail 1x9 shifter, SL-M9195-R

    Cassette

    microSHIFT Advent 11-46t, 9-speed

    Chain

    KMC X10 10-Speed

    Brakes

    Avid BB7 S MTN

    Type: Avid Mechanical Disc

    Brake Levers

    Avid FR-5

    Wheels
    Rims

    OE, 38mm, 36h

    Spokes

    DT Swiss 2.0 Stainless

    Front Hub

    Novatec QR x 100, 36h

    Rear Hub

    Novatec QR x 135, 36h

    Tires

    Surly ExtraTerrestrial Tire - 26 x 2.5", Tubeless, Folding, Black/Slate, 60tpi

    Disc Rotors

    SRAM CenterLine 200/180mm

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