Designed to introduce unfamiliar riders to Surly’s pavement and gravel line, Preamble highlights Surly’s most essential features: Durable custom steel tubing, a renowned ride feel, and just the right mounts for running racks, fenders, and bottle cages. Available in flat-bar and drop-bar configurations, it’s disc-brake specific and shares a single-position vertical dropout with Surly Bridge Club. For new weekend riders and veteran commuters, Preamble makes it easier than ever to get out of the car and on top of tough and comfortable Chromoly steel.
100% Surly Chromoly steel frame and fork; double-butted main triangle
Five frame sizes to fit nearly every size rider (XS, S, M, L, XL), with a slightly sloped top tube on XS and Small frames for improved standover and comfort
Friendly with 1x and 2x drivetrains
Mounts for racks, mudguards, and two bottle cages (located on the seat tube and down tube)
Clearance for 650b x 41mm tyres on XS–S frame sizes (with or without mudguards); 700c x 41mm tyres on M–XL frame sizes (with or without mudguards)
Surly - Preamble - Frame Set
Frame Construction
100% Surly Chromoly steel, Natch tubing, double-butted main triangle, TIG welded, E.D. coated
Fork Construction
Surly Preamble, 100% Chromoly steel fork, Disc Only
Rear Dropout Configuration
Vertical
Rear Hub Spacing
10 x 138mm Surly Gnot Boost QR
Front Hub Spacing
10 x 100mm
Rear Brake
51mm IS (160-180)
Front Brake
51mm IS (140-180)
Headtube
Ø34mm
Steerer Tube
Ø28.6mm
Crown Race
30mm (1-1/8")
Stock Headset Upper (S.H.I.S)
EC34
Stock Headset Lower (S.H.I.S)
EC34
Seat Collar
Ø30.0mm
Seatpost
Ø27.2mm
Front Derailleur (Clamp)
Bottom Pull (Ø28.6)
Max Chainring (CL) [3]
1x: 42t
2x: 46/36t maxBottom Bracket
68mm BSA, threaded
Tire Clearance Frame [1]/[2]
XS-SM frames: 650b x 41mm (with or without fenders)
MD-XL frames: 700c x 41mm (with or without fenders)Tire Clearance Fork [1]
650b x 47mm or 700c x 44mm
Rigid Fork Spec
650b: 380 x 47mm; 700c: 400 x 44mm
Bottle Mounts Frame
2: Standard
Rack Mounts Frame
Yes
Rack Mounts Fork
Fork crown and mid-blade rack mounts and fender mounts
Fender Mounts Frame
Yes
Fender Mounts Fork
Fork crown and mid-blade rack mounts and fender mounts