Capable of fitting 16-notch threaded bottom brackets with a major diameter (outside of notches) of 44-45mm and a minor diameter (inside of notches) of 42.7mm, including: - Shimano® BB80, BB5700, XT®BB70 , BB51 and previous external bearing threaded cups:- Threaded cups from Campagnolo®, Chris King®, FSA® MegaExo®, Hope™, SRAM®/Truvativ® GXP®, Race Face® X-type, Surly®, Wheels®, Fulcrum ® et al- Center Lock Lock Rings- Bafang BBSH, BBS02 Mid Drive Motor Lock Rings