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Genuine Shimano HollowTech II bottom bracket assembly.
• 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 silver anodised finish.
• Easy installation.
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