Wheels Manufacturing Bottom Bracket BB90 AC

Information

• Replacement Angular Contact Bearing for Trek BB90 bottom brackets
• Featuring an internal diameter of 24mm and an external diameter of 37mm
• High quality steel cartridge bearings for a high quality repair
• Where most bearings available after market are grade 300 (up to 3/10 of a millimetre out of round, the equivalent of a human hair), Wheels Manufacturing produce a much higher grade steel bearing that's found in high-end Shimano and Campagnolo hubs and other high-grade components
• Heat treated steel races and sealed for longevity
• These bearings increase the likelihood that your repairs have lasting quality results
• Sold individually