Bb t47 shimano black

T47 is a newer bottom bracket shell design, utilizing the oversized interface of the PF30 and EVO386, but with the benefit and peace of mind of a threaded interface. This bottom bracket allows you to install Shimano and other 24mm diameter thru-axle cranks in a T47 shell. It is compatible with 86mm wide frames. There are 2 versions: standard and coated bearings. CeramicSpeed ​​bearings come installed in cups and are connected through the housing. They both have super round ceramic balls and hardened steel races. CeramicSpeed ​​coated bearings have an additional attribute: a 3 micron thick metallic layer on the races. This addition makes racing harder and smoother, reducing drag and increasing life.