Shimano FC-U6000 Preload Adjust Nut (Black)

Shimano FC-U6000 Preload Adjust Nut Description: The Shimano FC-U6000 Preload Adjust Nut is a factory replacement part that can be used to replace a damaged or missing component on select Shimano Hollowtech II cranksets. This part is used to fine tune the preload on the bottom bracket bearings to ensure the smoothest operation and better durability for the crankset and bottom bracket. Features: Preload Adjust Nut slides over bottom bracket spindle and between the non-driveside crankarm and the bottom bracket, and takes up any play in the system for smoother performance See compatibility tab for full list of compatible cranksets Specifications: Spindle Diameter: 24mm (Shimano Hollowtech II) Color: Black