Center bearings BBR9100, threaded, English thread BSA , For cranks with integrated 24mm eye, for DURA-ACE road cranks. New design with reduced dimensions and improved sealing for long life. For 68mm frame width. For mounting, you must use the TL-FC24 tool reducer, which is supplied in the package with the bearings.
Type: ROAD, Total pack weight: 65g, Length/Diameter: 68mm, Mounting method: BSA, Hollowtech II, Black, with plastic washers, Material: Aluminum
Shimano DURA-ACE. Engineering at its peak. Every single component has been designed to push unrivalled levels of performance to the limit when used together.