2017 Surly

Big Fat Dummy

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

FrameSteel
SuspensionRigid
ForkSteel
Wheels26″ Aluminum
Drivetrain2 × 11
GroupsetGX, Race Face
BrakesHydraulic Disc
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

25 mph

Big Fat Dummy

25 mph

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Highest gear

(descending)

Sizing
SM

5'2" – 5'7"

MD

5'6" – 5'11"

LG

5'9" – 6'2"

🐐 Estimated

Rider Fit Notes

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Geometry
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Specs
Build
Frame

Surly 4130 CroMoly steel. Main triangle double-butted. TIG-welded cargo specific engineered for stiffness and durability

BB StandardBSA, 100mm, Threaded

Fork

Surly Wednesday, Tapered straight blade 4130 CroMoly. 468mm axle to crown, 47mm offset. 51mm I.S. front standard disc mount, 150mm x 15mm thru-axle dropouts (axle included), 100mm suspension fork compatible

Bottom Bracket

100mm wide, threaded English (1.37˝ x 24t)

Headset

Cane Creek 40 series

Stem

H.L. 31.8mm clamp 4-bolt

Handlebar

Answer ProTaper

Saddle

WTB Volt

Seatpost

H.L. 9mm offset 2 bolt

TypeRigid

Groupset
Rear Derailleur

SRAM GX 2x11 long cage type 2.1

Front Derailleur

SRAM GX 2x11 high direct mount

Crank

Race Face Aeffect 36/22

Shifters

SRAM GX 2x11

Cassette

Sunrace 11s 11/42

Chain

KMC X11 anti rust

Brakes

SRAM Level T

TypeHydraulic Disc

Brake Levers

SRAM Level T

Wheels
Rims

Surly My Other Brother Darryl

Front Hub

Salsa 150x15 32h

Rear Hub

Salsa 197x12 32h

Tires

Surly Big Fat Larry (front), Nate (rear)

Rider Notes
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Last updated February 25
Not listed for 2,583 days