- Frame: Tubing 100% Surly 4130 CroMoly steel. Main triangle double-butted. TIG-welded. ED Coated
- Fork: 4130 CroMoly, lugged and brazed. Proprietary sloping crown with threaded eyelets, tapered and butted curved blades with mid-blade rack eyelets, dual dropout eyelets
- Rear Dropouts: Vertical, 135mm O.L.D.
- Brake Compatibility: Rim brake pivots front and rear (cantilever or linear pull)
- Braze-ons/extras: Upper bosses and dropout eyelets for racks front and rear, fender eyelets, pump peg, downtube lever bosses, three sets of H2O cage bosses, rear housing stop for rim brakes, housing stops for brake and derailleurs, emergency spoke mounts
- Seatpost diameter: 27.2mm
- Seatpost clamp diameter: 30.0mm (Surly stainless included)
- Headset/Steertube: 1-1/8" threadless
- Front Derailleur Clamp Diameter: 28.6mm (bottom-pull)
- Bottom bracket shell: 68mm wide, threaded standard English (1.37" x 24t)
- Chainring Clearance: 42/53t double, 38/52/56t triple
- Tire Clearance: 700c: 42mm with fenders, 45mm without fenders Individual tire and rim combos affect tire clearance
- Color: Grandpa's Thermos
- WARNING Handling this product will expose you to chemicals, including lead, known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For further information go to www.P65Warnings.ca.gov.
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