Threaded bottom brackets

T45 is sometimes known as ThreadFit82.5, sometimes as the Colnago standard. This kit allows you to install Shimano cranksets and other 24mm spindle cranksets on your Colnago. CeramicSpeed bearings are supplied in cups and attached via a sleeve. There are 2 versions available: standard and coated bearings. Both feature CeramicSpeed super round balls and hardened steel races. CeramicSpeed coated bearings have an additional attribute: a 3-micron thick metallic coating on the races. This addition makes races harder and smoother, reducing drag and increasing lifespan. In the box: 2 threaded cups with installed CeramicSpeed bearings 2 dust covers Spacer tube All Round Grease Decal