2017 Surly

Big Dummy

A 26″ steel frame long tail cargo bike with upper mid-range components and mechanical disc brakes.

FrameSteel
SuspensionRigid
ForkSteel
Wheels26″ Aluminum
GroupsetGX, Deore
BrakesMechanical Disc
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Insights
Sizing
SM

5'2" – 5'8"

MD

5'6" – 5'11"

LG

5'10" – 6'3"

XL

6'1" – 6'7"

🐐 Estimated

Rider Fit Notes

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Reviews
BikeRadar
Surly Big Dummy review

Feb 2015 · Simon Withers

Beast of burden that won't win any awards for agility but does its job very capably

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Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

Surly Big Dummy, Surly 4130 CroMoly steel. Main triangle double-butted. TIG-welded cargo specific engineered for stiffness.

BB StandardBSA, 68mm, Threaded

Tire Clearance2.5"

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

Bottom Bracket

68mm wide, threaded English 1.37˝ x 24t

Headset

Cane Creek 40,

Stem

H.L., 31.8mm

Handlebar

Premetec,

Saddle

WTB Volt Sport,

Seatpost

Kalloy SP-342,

TypeRigid

Groupset
Rear Derailleur

SRAM GX, 10-speed TYPE 2.1

Front Derailleur

Shimano Deore, FD-T611-3

Crank

FC Firex C3.1,

Shifters

X7 Trigger,

Cassette

Microshift CS-H100 10-speed, 11-36t

Chain

KMC X10,

Brakes

Avid BB7, Centerline 180mm rotors front & rear

TypeMechanical Disc

Brake Levers

Avid FR-5,

Wheels
Rims

Alex Adventurer,

Front Hub

Shimano Deore M525 Disc, 36h. 100mm, black w/QR

Rear Hub

Shimano Deore M525 Disc, 36h. 135mm, black w/QR

Tires

Kenda 26x2.3" Kiniption, 60tpi

Accessories
Racks

400 lb combined rider and cargo. Max cargo 200 lb

Rider Notes
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Last updated February 25
Not listed for 2,611 days