Center bearings BBR9100, threaded, English thread BSA, For cranks with integrated shaft 24mm, for road cranks DURA-ACE. New construction with reduced dimensions and improved sealing for long life. For frame width 68mm. For mounting, it is necessary to use the TL-FC24 tool reducer, which is NOT supplied in a package with bearings.

SHIMANO DURA-ACE. Engineering at its peak. Every single component has been designed to move an unrivaled level of performance to the maximum when used together.