Surly Big Dummy

Surly bikes, frames and accessories are now available for order - some items may not be in stock until early 2016. Please contact us to confirm availability and timeframe for delivery.

Big Dummy is one of those cargo bikes that seem to be getting so much attention lately. Actually, the Big Dummy has been around for quite a while now. It’s built around the Longtail standard design platform, which means that Xtracycle or Surly accessories can be added depending on what you want to carry, or you can build your own to meet whatever hauling needs 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 ride better and last longer than longbike add-ons.

Like all our frames, it’s made of steel and sports lots of little touches that you’ve come to love in a Surly, like clearance for bigger tires and common component sizing. 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.

We’ve outfitted it with our own Surly bags, deck and rails kit…everything you need for the majority of stuff you might carry. 

SPECIFICATIONS

Frameset

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
Seatpost clamp Surly Stainless, 30mm Surly stainless, included

Drivetrain

Crankset Shimano LX FC-T551, Forged aluminum. 48-36-26t. Black
Bottom Bracket 68mm, Included
Front Derailleur Shimano FD-T610 Top swing, dual pull, w/ direct mount adaptor
Rear Derailleur Shimano Deore M615 SGS, Top-normal traditional
Cog or Cassette Shimano CS-HG50-10, 11/36t
Chain KMC, 10-speed

Components

Headset Cane Creek 40, 1-1/8˝ threadless. Black
Brakes Avid BB7, Cable actuated. 180mm rotors front & rear
Brake Levers Avid FR-5, Black
Shifters Shimano Deore M610, 3 x 10-speed
Stem HL, 31.8mm bar clamp. 4-bolt. Black
Handlebar Salsa Salt Flat, 31.8mm 700/750mm
Saddle Velo VL-2155, Steel rails. Black vinyl. Feels pretty o.k.
Seatpost Kalloy SP-342, 27.2mm. 350mm. Black

Wheels

Front Hub Shimano Deore M525, 36h. Disc. Black
Rear Hub Shimano Deore M525, 36h. Disc. Black
Rims Alex DH-19, 36h. Black w/machined sidewalls
Spokes DT Swiss Champion, 14g
Tires Continental Town & Country, 26 x 2.1˝. Steel 

Frames & Forks

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