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

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

Big Fat Dummy is truly a hulking beast of a bike. Maximalist bikepackers, those looking to make bikepacking a family affair, and those that help maintain their local trails will appreciate the Big Fat Dummy hauling abilities.
At first glance, it might just seem like a beefed-up version of Big Dummy, but that’s actually not the case. Specifically designed around fat tires, it has a longer toptube and slacker headtube offering the most stable, stiff, and predictable ride possible while hauling a lot of cargo.
Single-piece frame increases stiffness and decreases torsional flex
Human cargo compliant with the use of Dummy Rail Collars
Three-pack mounts, double water bottle bosses on seattube, internal dropper post routing
Clearance for 26" x 5.25" tires or 29” x 3.0” tires

Surly Big Fat Dummy

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

Frame	Steel
Suspension	Rigid
Fork	Steel
Wheels	26″ / 29″ Aluminum
Drivetrain	2 × 11
Groupset	GX
Brakes	SRAM Level T Hydraulic Disc

Frame	Surly 4130 Chromoly steel. Surly 4130 Chromoly steel. Main triangle double-butted. TIG-welded cargo specific engineered for stiffness and durability Tire Clearance: 3"
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 Type: Rigid
Grips	Velo Single lock-on

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 Type: SRAM Level T Hydraulic Disc
Brake Levers	SRAM Level T

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

2020 SurlyBig Fat Dummy

2020 Surly
Big Fat Dummy