Use this sleeve in a BB30 frame to adapt it to accept your regular threaded bottom bracket. Use 68mm for road cranks, use 73mm for MTB and some CX. This sleeve needs to be Loctited into the frame before installing the threaded cups. Be careful to avoid overtorquing the cups, which may break the bond of the Loctite. We would always suggest that there are better options than this (see our range of BB30 specific bottom brackets), but this is a cheap and simple way to solve a common problem.
BB30 to BSA Threaded Adaptor Sleeve