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Unique axle taper, These are not interchangeable with Shimano chain sets
Cup thread: BSA (1.37 x 24 TPI) or Italian (36mm x 24 TPI)
Cups are machined from 7000 series aluminium alloy
17mm heat treated hollow Chromalloy Axle
Axle length: 102mm with no offset
Product Description A lightweight hollow axle bottom bracket that runs on three sealed cartridge bearings; two on the drive side and one on the non-drive side. Italian Quality and Craftsmanship, with light alloy cups and a hollow chromo steel axle, designed for record or Chorus square taper from 1995 on. Features: unique axle taper, these are not interchangeable with Shimano. Cup Thread: BSA (1.37 x 24 TPI) or Italian (36mm x 24 TPI) cups are machined from 7000 Series aluminium alloy. 17mm heat treated hollow chromo axle length: 102mm with no offset. Weight: 220G (102mm). CP810: BB99-CH02IT CP811: bb99-ch02bc. Set Contains: 1 x Bottom Brackets