External BSA, English threaded bottom brackets featuring anodized aluminum cups with Enduro sealed bearings Mountain versions for 73mm or 68mm bottom bracket shells or Road specific versions for 68mm bottom bracket shells Offered in 24mm (Shimano, FSA, Race Face, etc), GXP 24/22mm (SRAM/Truvativ), 30mm interface, SRAM DUB and Praxis M30/28 Compatible with 30mm diameter cranks with a spindle length of at least 104mm Angular contact: Enduro ABEC 5 angular contact bearings Base: Enduro ABEC 3 sealed bearings 92105g depending on model