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Surly Big Dummy

Surly Big Dummy
  • Color: Bruised Ego Purple
Bruised Ego Purple
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The Surly Big Dummy. Designed to transport a rider and up to 200 pounds of cargo, the Big Dummy retains an extremely smooth and maneuverable ride under the heaviest of burdens. Big Dummy bikes ship with a Dummy deck, rails, Dummy Rail Collars, bags, and kickstand.

- 100% Surly chromoly steel; fork is suspension corrected for 80mm
- Fender eyelets and Surly Trip Guides for continuous brake/shift housing or brake hydraulic lines
- Two standard bottle mounts and one 3-pack mount on Small frame; three standard bottle mounts and one 3-pack mount on Medium and Large; four 3-pack mounts on the fork
- Includes (2) Surly Dummy Rail Collars for a stiffer Dummy Rail/Frame interface
- Length of the frame requires 2 chains and tandem cables
- 26 x 2.5" maximum tire clearance; absolutely no limitation on chainring sizes
- Weight Limit: 400 lbs. combined rider & cargo


Frame Steel
Fork Steel, Rigid
Rims OE, 38mm, 36h
Hubs Front: Novatec QR x 100, 36h
Rear: Novatec QR x 135, 36h
Spokes DT Swiss 2.0 Stainless
Axles Front: QR x 100mm
Rear: QR x 135mm
Tires Surly ExtraTerrestrial Tire - 26 x 2.5, Tubeless, Folding, Black/Slate, 60tpi
Bottom Bracket Race Face BSA 24
Crankset Race Face Ride Crankset, 32t
Shifters microSHIFT Advent Trail 1x9 shifter, SL-M9195-R
Rear Derailleur microSHIFT Advent 1 x 9 Speed, RD-M6195M
Cassette/Freewheel microSHIFT Advent 9 Speed 11-46t, CS-H093
Chain KMC X10 10 Speed
Brakes Avid BB7 S MTN
Rotors SRAM Centerline 200/180mm
Brake Levers Avid FR-5
Handlebars Surly Terminal Bar
Tape/Grips Velo Black
Stem Kalloy 31.8
Headset Cane Creek 40 Series, EC34
Seatpost Kalloy 27.2x350
Saddle Selle Italia X-Base
Pedals Sold separately

* Subject to change without notice.

Part Numbers

Option UPC MPN Store SKU
Bruised Ego Purple / Small 708752366831 BK0339
Bruised Ego Purple / Medium 708752366978 BK0340 210000100190
Bruised Ego Purple / Large 708752367111 BK0341