Rant Bang Ur Euro BB Set size: fits with 19mm spindle type: Euro Bottom Bracket (for frames with EBB) additional information: british ISO standard 1.37 inch x 24tpi with 68mm BB shell LH and RH threaded alloy cup 4 precision sealed bearings 2 CNC machined 6061 aluminum cone spacers 4 spacers for custom fit 1 alloy internal spacer