Shimano
7900 Dura Ace Bottom Bracket Cups

• The bottom bracket bearings for the HollowTech II FC7900 crankset, which is he 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 FC7900 chainset, with a choice of English or Italian thread BB cups