Shimano Deore SM-BB52 68-73mm External Bottom Bracket

The Shimano Deore SM-BB52 Bottom Bracket is one of the go-to options for those looking to replace their bottom bracket on a budget. With great sealing and rotation, these are excellent value for money by delivering high driving efficiency.

Style: BSA 68/73 threaded

Spindle size (diameter): 24mm only. Shimano Hollowtech II

Compatibility:

• Shimano: FC-T551, FC-T611, FC-M552, FC-M590, FC-M610, FC-M612, FC-M615, FC-M622, FC-M625, FC-M640, FC-M645

Installation tools: This will require a 16 notch BB tool to remove/install