High quality eng. threaded/BSA M30 BB bottom bracket cups made of 7075 T6 aluminium with steel bearings for installing a Praxis M30 Spindle based crank into a BSA English threaded frame. Works on 68mm Road as well on 68/73mm MTB.
Only for Praxis M30 spindle cranks being installed on a BSA/Eng. threaded frame 68mm Road version / 68/73mm MTB setup