Park Ridge, NJ 07656
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Sundays 12-4 in season

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> Bicycling Catalog > Bikes > Mountain > Unsuspended > Surly > Big Dummy Frameset
Surly Big Dummy Frameset


Big Dummy Frameset

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2017 Surly Big Dummy Frameset

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.

Like all Surly's frames, it’s made of size specific, 4130 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.

The included Dummy Rail Collars provide a secondary retention system for the rack, as well as stiffen the rack system so you can safely carry a passenger.

Features and Information

  • Contact us for parts packages
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, tapered and butted straight bladewith single fender eyelet on the dropout, 1-1/8" x 260mm threadless steerer, 51mm IS disc mount, removable cantilever pivots, line/housing guides
Axles Front: 100mm QR; Rear: 135mm QR
Accessories & Extras Surly Stainless sesatpost clamp, 30mm

* Subject to change without notice.


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