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The Surly Preamble is a hard-boiled steel commuter built for comfort, durability, and buffoonery on pavement and gravel.
Preamble is a hard-boiled steel commuter built for comfort, durability, and buffoonery on pavement and gravel.
The challenge was thus: Build a serious steel bike and give it only the attributes that matter most. Make it quick and comfortable on pavement, as well as confident and compliant on degraded surfaces. What the Enginerds put forth is Preamble, a pavement and gravel utility worker that proves you don’t need to cut corners or clip coupons to make a more affordable steel bike. You just need to keep shit simple.
Preamble can run racks and fenders and carry a couple water bottles. Surly was raised on stealing basic cable, after all. Smooth and efficient on asphalt, Preamble’s double-butted main triangle provides a resplendent ride feel and withstands abuse from life’s inevitable potholes. Make it your own with flat bars, drop bars, a basket, or bags. On the road to steel euphoria, Preamble is the gateway drug.
Frameset
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Details |
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Frame |
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Surly Preamble, 100% Chromoly steel tubing, E.D. coated |
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Fork |
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Surly Preamble, 100% Chromoly steel fork, Disc Only |
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Seatpost Clamp |
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Surly Stainless 30.0 |
Components
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Details |
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Headset |
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VP 1-1/8" |
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Brakes |
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Tektro Hydraulic M275/276 |
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Brake Levers |
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Tektro Hydraulic M275/276 |
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Rotors |
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Tektro Centerlock, 160mm Front/Rear |
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Shifters |
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Shimano CUES U4000, 1x9 |
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Stem |
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Kalloy 31.8mm |
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Handlebar |
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Kalloy 6061 PGW, 9-degree backsweep, 35mm rise |
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Grip/Tape |
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Velo Black Rubber |
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Saddle |
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Selle Italia X-Base Boost |
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Seatpost |
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Kalloy 27.2 x 300mm non-offset (XS-MD), offset (LG-XL) |
Drivetrain
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Details |
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Crankset |
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Shimano CUES U4000-1, 40t |
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Bottom Bracket |
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Shimano Square Taper BB-UN101 |
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Front Derailleur |
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N/A |
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Rear Derailleur |
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Shimano CUES U4000 GS |
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Cassette |
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Shimano Linkglide LG300, 11-41t 9-speed |
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Chain |
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Shimano Linkglide LG500 |
Wheels
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Details |
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Front Hub |
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Shimano HB-MT200, 32h, QR x 100mm, CenterLock |
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Rear Hub |
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Shimano FH-MT200-B, 32h, QR x 141mm, CenterLock |
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Rims |
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Jalco XCD21 |
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Tires |
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XS-SM: MSW Hybrid 650b x 35mm, MD-XL: MSW Hybrid 700c x 35mm |
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Complete Bike Weight |
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27 lbs for Medium |
Frame Construction
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Details |
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Frame Material |
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100% Surly Chromoly steel, Natch tubing, double-butted main triangle, E.D. coated |
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Fork Material |
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4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, ED coated |
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Rear Dropout Configuration |
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Vertical |
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Rear Hub Spacing |
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"Gnot-Boost" 138mm (10 x 135mm or 10 x 141mm) |
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Front Hub Spacing |
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10 x 100mm |
Brake Specifications
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Brake Type |
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Details |
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Rear Brake |
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Disc - 51mm I.S. (180mm max rotor) |
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Front Brake |
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Disc - 51mm I.S. (203mm max rotor) |
Headtube and Steering
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Details |
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Headtube Diameter |
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Ø34mm |
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Steerer Tube Diameter |
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Ø28.6mm |
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Crown Race |
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Ø30mm (1-1/8") |
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Headset Upper (S.H.I.S.) |
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EC34/28.6 |
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Headset Lower (S.H.I.S.) |
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EC34/30 |
Seatpost and Mounts
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Details |
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Seat Collar Diameter |
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Ø30.0mm |
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Seatpost Diameter |
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Ø27.2mm |
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Front Derailleur Clamp |
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High direct mount top-pull (Ø28.6mm) |
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Front Derailleur Offset Adapter |
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26mm offset for 135mm rear spacing, 29mm offset (for 141mm rear hub spacing) |
Chainring and Bottom Bracket
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Details |
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Max Chainring |
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1x (47CL): 42T / 2x (47CL): 46/36T |
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Bottom Bracket |
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68mm BSA, threaded |
Tire Clearance
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Details |
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Tire Clearance (Frame) |
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XS-SM: 650b x 41mm (with or without fenders) |
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MD-XL: 700c x 41mm (with or without fenders) |
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Tire Clearance (Fork) |
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XS-SM: 650b x 47mm / MD-XL: 700c x 44mm (both with or without fenders) |
Mounts
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Mount Type |
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Details |
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Bottle Mounts (Frame) |
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2 Standard |
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Rack Mounts (Frame) |
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Yes |
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Rack Mounts (Fork) |
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Fork crown, mid-blade rack mounts, and fender mounts |
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Fender Mounts (Frame) |
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Yes |
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Fender Mounts (Fork) |
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Fork crown, mid-blade rack mounts, and fender mounts |
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