2019 Surly

Big Fat Dummy

A 26″ / 29″ steel frame long tail cargo bike with upper mid-range components and hydraulic disc brakes.

MSRP$3,025
FrameSteel
SuspensionRigid
ForkSteel
Wheels26″ / 29″ 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)

27 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
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

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

Tire Clearance3"

Fork

Surly Wednesday, Tapered straight blade 4130 Chromoly. Surly Wednesday, Tapered straight blade 4130 Chromoly. 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

Race Face

Headset

Cane Creek 40 series

Stem

31.8mm clamp 4-bolt

Handlebar

Salsa Rustler

Saddle

WTB Volt

Seatpost

30.9 2-Bolt 400mm

TypeRigid

Grips

Velo Single lock-on

Groupset
Rear Derailleur

SRAM GX 2x11 type 2.1

Front Derailleur

SRAM GX 2x11 high direct mount

Crank

Race Face AEffect 34/24T

Shifters

SRAM GX 2x11

Cassette

Sunrace 11 speed 11-42t

Chain

KMX X11 anti rust

Brakes

SRAM Level T

TypeHydraulic Disc

Brake Levers

SRAM Level T

Wheels
Rims

WTB Scraper i40 ST TCS

Front Hub

Novatec, 32h, Thru-Axle

Rear Hub

Novatec, 32h, Thru-Axle

Tires

Surly Dirt Wizard 29x3 60tpi

Disc Rotors

SRAM Centerline 180/180mm

Rider Notes
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Last updated July 15
Not listed for 1,734 days