Genuine Shimano HollowTech II bottom bracket assembly
Features:
Length of screw thread is increased to enable the fitment of chain devices
Set includes left and right hand cups, spacers, inner cover, and inner O-rings
Light weight seal structure helps to remove vital grams
Sealed cups keep out dirt and water
Maintenance free
Compatible with 68mm and 73mm shell
Durable gold anodised finish
Easy installation
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