Race Face Ride X-type Bottom Bracket Cups

These are high strength Aluminium bottom bracket cups that are designed to be used with your X-Type cranksets, but are also compatible with some Shimano and FSA external BB systems.
They are made from forged & CNC machined 7050 aluminum and have a tapering wall construction to minimize weight.
These cups house 35% larger ball bearings than internal systems, yielding vastly improved durability.