BB-R9100 Dura-Ace HollowTech II bearing cups

The bottom bracket bearings for the HollowTech II FCR9100 crankset, which is the ultimate crankset for stiffness whilst keeping weight low for performance riding and racing
Minimal bearing interface gives superbly smooth rotation
Distinctive style that exudes quality and perfection
Required for installation of FCR9100 chainset, with a choice of English or Italian thread BB cups
Use TLFC34 or TLFC24 in conjunction with TLFC36 adaptor tool for installation and removal