• Genuine Shimano HollowTech II bottom bracket assembly. • Length of screw thread is increased to enable the fitment of chain devices. • Set includes left and right hand cups, spacer, 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 83 mm shells. • Durable gold anodised finish. • Easy installation.
