Complete press-fit bottom bracket assembly for Shimano HollowTech II MTB cranks

• Cups are made from fibre reinforced polymer material which reduces the risk of frame noise and damage
• Set includes left and right hand cups, 2.5 mm spacer, inner cover, and inner O-rings
• Sealed cups keep out dirt and water
• Maintenance free
• Compatible with 89.5 mm (with 2.5 mm spacer) and 92 mm shells
• 41 mm cup diameter
• Easy press-fit installation