Complete press-fit bottom bracket assembly for Shimano HollowTech II road cranks. The cups are made from fibre reinforced polymer material which reduces the risk of frame noise and damage.

• Set includes left and right hand cups, inner cover, and inner O-rings
• Sealed cups keep out dirt and water
• Maintenance free
• Compatible with 86.5 mm shells
• 41 mm cup diameter
• Easy press-fit installation