- External bottom bracket designed for threaded bottom brackets - Machined aluminum cups hold stainless steel cartridge bearings in stainless races - High quality stainless steel bearings provide a much greater life span than stock units - Cartridge bearings are replaceable - Suitable for 68, 73, 83, 100 and 120mm width bottom brackets - Designed for cranks with 30mm axles - Please note specific fitting tool (HTT188) is needed to fit bottom bracket. Sold separately
