The Shimano SM-BBR60 is a Hollowtech II threaded bottom bracket for 68mm BSA road frames, built for Ultegra, 105 and GRX cranksets.

• Fits 68mm BSA (English-threaded) bottom bracket shells
• For Hollowtech II cranks with a 24mm spindle
• Compatible with Ultegra FC-R8100/FC-R8000/FC-6800, 105 FC-R7100/FC-R7000/FC-5800, GRX FC-RX820/FC-RX810 and Metrea FC-U5000
• Aluminium cups with steel bearings
• Approx. 77g
• Includes right and left bearing cups and centre sleeve; TL-FC25 tool adapter not included