Wheels Manufacturing BSA Bottom Brackets for frames that accept English (BSA) threaded bottom bracketsProvides a solution for running a 29mm SRAM DUB crankset in a BSA threaded frameMachined aluminum cupsEnduro 6806 ABEC-3 sealed bearings outboard of the BB shellItem SpecificationsBB Shell Width (mm)68BB Shell Width (mm)70BB Shell Width (mm)73BB/Frame InterfaceEnglishBottom Bracket Shell I.D.1.37Defined ColorBlackSpindle Interface TypeSRAM DUBWeight102 Wheels Manufacturing BSA Bottom Bracket Bottom Brackets UPC: 811079025609