The Surly Preamble is a steel utility bike engineered for simplicity, performance, and versatility. Designed as a pavement and gravel workhorse, it’s quick and comfortable on smooth roads, yet confident and compliant on degraded surfaces. By focusing only on the attributes that matter most, Surly has crafted a bike that proves you don’t need to overcomplicate or overspend to get a high-quality steel ride.

With thoughtfully sloping top tubes on XS and Small frames for improved standover and comfort, and tailored wheel sizes—650b for XS–S and 700c for M–XL—the Preamble adapts perfectly to riders of all sizes. Its custom-cast single-position vertical dropout ensures precise drivetrain alignment while keeping the design simple and robust.

FEATURES

• Steel construction for durable, compliant ride quality

• Sloping top tubes on XS and S frames for better standover

• Size-specific wheelsets: 650b (XS–S) and 700c (M–XL)

• Custom-cast single-position vertical dropout

• Confident on both pavement and gravel

SPECIFICATIONS

• Intended Use: Commuting / Gravel / Utility

• Wheel Size: 27.5" (XS–S), 700c (M–XL)

• Braking System: Hydraulic Disc (Tektro M275/276)

• Frame Material: 100% Chromoly steel, E.D. coated

• Fork Material: 100% Chromoly steel, disc-only

• Bottom Bracket: Shimano Square Taper BB-UN101

• Chain: Shimano Linkglide LG500

• Crank: Shimano CUES U4000-1, 40T

• Shifters: Shimano CUES U4000, 1x9

• Cassette: Shimano Linkglide LG300, 11–41t, 9-speed

• Rear Derailleur: Shimano CUES U4000 GS

• Handlebar: Kalloy 6061 PGW, 9° backsweep, 35mm rise

• Stem: Kalloy 31.8mm

• Saddle: Selle Italia X-Base Boost

• Seatpost: Kalloy 27.2 × 300mm, non-offset (XS–MD), offset (LG–XL)

• Front Wheel: Jalco XCD21, Shimano HB-MT200, 32h, QR x 100mm, CenterLock

• Rear Wheel: Jalco XCD21, Shimano FH-MT200-B, 32h, QR x 141mm, CenterLock

• Tires: XS–S: MSW Hybrid 650b × 35mm, M–XL: MSW Hybrid 700c × 35mm