Preamble Flat Bar

Nothing More is Needed. Nothing Less Will Do.

The challenge was clear: Build a serious steel bike with only the most essential attributes. The result is the Preamble Flat Bar—a pavement and gravel utility machine designed for simplicity, comfort, and confidence on all kinds of roads.

Quick and efficient on asphalt, yet compliant on rougher surfaces, the Preamble Flat Bar proves you don’t need to cut corners to create an affordable, high-quality steel bike. Built around a double-butted main triangle, it delivers a smooth, resilient ride that soaks up potholes and shrugs off everyday abuse.

Outfitted with a flat handlebar for an upright, stable riding position, the Preamble Flat Bar is perfect for commuting, cruising, and everyday rides. It supports racks, fenders, and water bottles, making it ready for utility and adventure alike.

Raised on simplicity and practicality, Surly designed this bike to keep things straightforward—and fun. The Preamble Flat Bar is your no-fuss, gateway to steel euphoria.

Frameset
Frame: Surly Preamble, 100% Chromoly steel tubing, E.D. coated
Fork: Surly Preamble, 100% Chromoly steel, disc only
Seatpost Clamp: Surly Stainless 30.0

Components
Headset: VP 1-1/8"
Brakes: Tektro Hydraulic M275/M276
Brake Levers: Tektro Hydraulic M275/M276
Rotors: Tektro Centerlock, 160mm front and rear
Shifters: Shimano CUES U4000, 1x9
Stem: Kalloy 31.8mm
Handlebar: Kalloy 6061 PGW, 9° backsweep, 35mm rise
Grips: Velo Black Rubber
Saddle: Selle Italia X-Base Boost
Seatpost: Kalloy 27.2 x 300mm (non-offset for XS–MD, offset for LG–XL)

Drivetrain
Crankset: Shimano CUES U4000, 40t
Bottom Bracket: Shimano Square Taper BB-UN101
Front Derailleur: N/A
Rear Derailleur: Shimano CUES U4000 GS
Cassette: Shimano Linkglide LG300, 11–41t, 9-speed
Chain: Shimano Linkglide LG500

Wheels
Front Hub: Shimano HB-MT200, 32h, QR x 100mm, CenterLock
Rear Hub: Shimano FH-MT200-B, 32h, QR x 141mm, CenterLock
Rims: Jalco XCD21
Tires:

• XS–SM: MSW Hybrid 650b x 35mm

• MD–XL: MSW Hybrid 700c x 35mm