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Surly Big Dummy

Surly Big Dummy


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  • This item is not permitted to be shipped, however it can be purchased online and picked up at any of our retail locations, at your convenience.

Product Details

2017 Surly Big Dummy

Big Dummy is a long-tail cargo bike, which means that not only can you haul a serious amount of cargo, different accessories can be added to your Big Dummy frame and deck depending on what you want to carry. Being a dedicated single-piece frame, instead of an add-on to an existing bike, it’s stiffer and resistant to torsional flex, which provides a better ride and longer lasting frame than long-tail add-ons.

The frame is made of CroMoly steel – a tube set engineered for cargo that sports lots of little touches that you’ve come to love in a Surly, like clearance for big tires and the use of common component sizes. Figure on being able to carry about 200 pounds (90kg) of cargo. The load weight, and how it’s loaded, will affect the handling somewhat. Also, plan on using gears, especially as cargo weight increases. This may seem obvious, but as you get comfy with it, you will use your full range of gears as never before.

It’s got a 3x10 drivetrain, Avid BB7 disc brakes, quality Shimano Deore hubs, and 26x3" Kenda Kiniption tires. Surly has outfitted it with bags, deck, rails and Dummy Rail Collars; everything you need for the majority of stuff you might carry, like groceries, shovels, bags of charcoal or mulch, guitars, lamps, mannequins, whatever. Bags, deck, rails, and rail collars are all designed to improve on previous offerings and work together to make sure your stuff is transported with safety and stability. It’s an unbending interface, which when you’re carrying lots of cargo, is a good thing to have. Get creative, and get hauling.

Features and Information

  • Specifications close open

    Specification Description
    Frame Surly Big Dummy, Surly 4130 CroMoly steel. Main triangle double-butted. TIG-welded cargo specific engineered for stiffness.
    Fork Surly Big Dummy, TIG-welded 4130 CroMoly
    Headset Cane Creek 40,
    Rims/Wheels Alex Adventurer
    Tires Kenda 26x3" Kiniption, 60tpi
    Crankset FC Firex C3.1
    Bottom Bracket Surly Enduro
    Chain KMC X10,
    Front Derailleur Shimano Deore, FD-T611-3
    Rear Derailleur SRAM GX, 10-speed TYPE 2.1
    Rear Cogs Microshift CS-H100 10-speed, 11-36t
    Shifters X7 Trigger
    Handlebars Premetec
    Stem H.L., 31.8mm
    Brake Levers Avid FR-5
    Brakes Avid BB7, Centerline 180mm rotors front & rear
    Saddle WTB Volt Sport
    Seat Post Kalloy SP-342

    * Subject to change without notice.

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  • Part Numbers close open

    Option Barcode Manufacturer's Part Number Vendor Number
    Soil Ant Green / Small 00708752136939 BK3220 QBP-BK3220
    Soil Ant Green / Medium 00708752136878 BK3221 QBP-BK3221
    Soil Ant Green / Large 00708752136816 BK3222 QBP-BK3222
    Soil Ant Green / X-Large 00708752136755 BK3223 QBP-BK3223
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