Description Genuine Shimano Hollow Tech II bottom bracket assembly. Bottom bracket cups that fit XT/SLX/Zee Cranksets. Available in 68mm/73mm English threads.
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
Compatible with 68mm and 73mm shell
Durable silver anodised finish