For SRAM DUB BB BSA/MTB compatible BSA 1.37”*24T frame, Forged alloy & CNC machined cups alloy shell w/double o ring seal, Double sealed cartridge bearings, Anodized Black, DUB bb system for 28.99mm spindle, w/logo SUMART
For SRAM DUB BB BSA/MTB compatible BSA 1.37”*24T frame, Forged alloy & CNC machined cups alloy shell w/double o ring seal, Double sealed cartridge bearings, Anodized Black, DUB bb system for 28.99mm spindle, w/logo SUMART