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.Features:Minimal bearing interface gives superbly smooth rotationDistinctive style that exudes quality and perfectionRequired for installation of fcr9100 chainset, with a choice of english or italian thread bb cupsUse tlfc34 or tlfc24 in conjunction with tlfc36 adaptor tool for installation and removal
