Our standard BSA English threaded BB isShimano compatible. The 7075 T6 alloy cups feature CNC finishing and standard anodizing. Smooth and durable, the high-grade Enduro 2437steel bearings are fully sealed and are a fantastic replacement BB for your Shimano drivetrain. Compatible with Shimano Hollowtech II cranks.

• MFG Machined Aluminum
• BEARING Enduro 2437steel with high grade grease and fill
• SIZE & USE 68mm version for Road / 68/73mm version forMTN
• FRAME SPEC BSA English threaded frames
• COMPATIBILITY For Shimano Hollowtech II cranks
• Use any 16-notch BB tool for installation/removal