30mm drive bearing/30mm non-drive bearing bottom bracket. For use with Praxis Lyft cranks and is compatible with 30mm spindle SRAM, Race Face/Easton Cinch, Rotor REX/3D+ 30mm, 5Dev and Cane Creek eeWings cranks. Made with Enduro bearings and high grade grease . Praxis M30 BB tool required for installation for versions with external cups, use PX8980/8981. Unauthorized online sales prohibited by manufacturer