This Bottom Bracket is for BBright frames with 46mm frame diameter, 68mm frame with and a total with of 79mm when the BB is installed, this BB is for a 30mm spindle
Our Gravel bottom brackets are built with CeramicSpeed Coated bearings and equipped with UFO Long Life Grease for the ultimate in durability and protection in all environments
This bottom bracket features nearly zero loss of power due to friction, thanks to the bearings. The bearings have super round, super smooth CeramicSpeed balls rolling on hardened-steel races. The Coated version has a metallic coating laid onto the races, making them even harder and smoother, resulting in longer life and lower drag. They come installed in cups.Compatibility matrix
Optimized Power Transfer
Longest Product Lifetime
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General Maintenance for CeramicSpeed Bottom Bracket and Wheel Bearings
Installation of Shimano cranks on CeramicSpeed Bottom Brackets