Designed to be used with X-Type or EXI cranksets. Manufactured from high strength aluminum and featuring twice the number of ball bearings than competitors, Race Face BB cups are also compatible with various Shimano and FSA external BB systems, making for a great upgrade.
BB Cups are forged and CNC machined from 6066 aluminium. Features 35% more thread engagement and thicker walls than the XC/AM BB cups for greater durability in big-hit situations. Massive external bottom bracket cups house 35% larger ball bearings than internal systems, yielding vastly improved durability. Bearings feature a special “full-complement” construction. This doubles the amount of ball bearings in the cartridge and greatly increases it's load carrying capacity. Bearings feature custom triple wiper seal to better retain grease and keep contaminants out. Bearings are factory filled with Phil Wood waterproof grease — tested and proven to extend bearing life. Interchangeable with select Shimano and FSA external MOUNTAIN BB systems.