OMNI Racer WORLDS LIGHTEST Ti CERAMIC Bottom Bracket Fits Dura Ace Ultegra 105
Shimano ULTEGRA: SM-FC6800, SM-FC6700, SM-FC6600, SM-FC6601G. OMNI Racer World's Lightest cycling components. About OMNI Racer. NEWOMNI Racer Integrated Type Bottom Bracket with TiN Ceramic Bearings.