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. 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 68 mm and 73 mm shell Durable gold anodised finish Easy installation
SKU:BB80B
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