Surly Big Dummy

The Big Dummy is designed for carrying cargo. Like all Surly frames, it’s made of steel and it’s got lots of little touches that you’ve come to love in a Surly, like clearance for bigger tires and common component sizing.

It’s built around the Xtracycle design platform, which means that Xtracycle accessories can be added depending on what you want to carry, or you can build your own to meet whatever hauling need you have. However, being a dedicated single-piece frame instead of an add-on to an existing bike, it’s more stout and resistant to torsional flex, and this makes it resistant to fatigue and failure.

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’ll use your full range of gears as never before.

One of the funny things about the Big Dummy is that it doesn’t ride quite like you might think. Sure, it’s a little longer, but mainly it rides like a bike. It’s smooth, maneuverable, even nimble. Are you riding light and want to hit some singletrack on the way home? Do it. And if you get a call from your better half asking you to pick up some groceries, or you see a nice lamp at a garage sale, you’re all ready. Lots of people bought one to use once in a while and began using it as their everyday ride.

The frame can be built up lots of different ways to suit your needs and budget. The complete bike option has been reconfigured this year to help keep the price down while still retaining durable, quality components Surly is known for.

Year 2011

Build Specs

Frame Surly Big Dummy , Surly 4130 CroMoly steel. TIG-welded. Main triangle doublebutted
Fork Surly Big Dummy , Surly 4130 CroMoly steel. TIG-welded. 1-1/8″ threadless steer
tube, uncut
Seatpost Clamp Surly stainless , 30.0mm. Stainless steel. Black
Crankset/BB TruVativ FireX C3.1 , Forged aluminum. 48-36-26t. Black
Cassette Shimano HG-61 , 9-speed, 11-34t
Chain SRAM PC-971 , 9-speed
Front Derailleur Shimano Deore , FD-M591 Traditional style dual pull. 28.6mm clamp
Rear Derailleur Shimano Deore , Long Cage RD-M591 SGS. Top-normal traditional
Headset Ritchey Logic Comp , 1-1/8″ threadless, w/40mm spacers. Black
Stem Kalloy, AS-008 , 1-1/8″ threadless. Forged. 25.4mm clamp diameter. Black
Handlebar Salsa Moto Ace , 660mm wide. 17°. Black
Grips Velo Kraton , Rubbery. Black
Brake Levers Avid FR-5 , Destroy all monsters
Brakes Avid BB7 , Cable-actuated disc. 185mm rotors front & rear
Seatpost Kalloy SP-342 , 27.2 x 350mm. Single-bolt cradle clamp. Black
Saddle WTB SST , Vinyl cover. CroMoly rails. Black
Shifters Shimano Deore , SL-M590. 9-speed shifter pair
Cargo System Xtracycle Kit , Snapdeck, left & right V-racks, left & right Freeloader bags
Hubs Shimano Deore , M525 Disc. 36h. Black
Rims Salsa Gordo , 26″. 36h. Black w/machined sidewalls
Spokes DT Champion , 14g/2.0mm straight gauge stainless. 12mm silver
brass nipples
Tires Continental Town & Country, 26 x 2.1″. Steel bead.

Comments are closed.