BSA cup thread 1.37 "x 24T. - 68mm Bottom bracket shell. Aluminium Tapered Steerer - Ahead Threadless - 28.6mm (1 1/8") Top x 40mm (1 1/2") Crown. Rim Brake Only. CC - 510 mm. Weight: 690g. Max Clearance at Tyre Section: 25mm.
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