Wheels Mfg PF30 Threaded BB Praxis M30/28 Base BlackConverts non threaded 46mm press fit BB shells to accept most 24mm or 24 22mm spindle cranks Offered in 24mm (Shimano, FSA, Race Face, etc), GXP 24 22mm (SRAM Truvativ), or 30mm for installation into PF30 frames without the need for adapters Includes anodized aluminum cups with Enduro sealed bearings Angular contact: Enduro ABEC 5 angular contact bearings Base: Enduro ABEC 3 sealed bearings 148 153g depending on model TECH SPECS model base spindle