Material:Sealed ceramic bearing inside, low centrifugal force, more durable, more lubricating, high temperature resistance, high speed.Precision machined threads, high-strength aluminum alloy, CNC process,lightweight and durable.
Shell width:Width 68-73mm, english BSA thread,works for any kind of MTB and road bike frame with thread.
Crankset Spindle diameter, left and right are both 24mm.
Compatibility:If your MTB and road bike is metal frame with thread, usually it works. For crankset, works for Shimano, Prowheel, IXF, and any 24mm-24mm crankset. Like Deore XT SLX R7000 R8000 R9100 4700 5800 6800.
Package content: 1 set bottom bracket and 3pcs width adjust washer.