Features:
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Complete Ultegra level press-fit bottom bracket assembly for Shimano HollowTech II road cranks
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Cups are made from fibre reinforced polymer material which reduces the risk of frame noise and damage
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Set includes left and right hand cups, inner cover, and inner O-rings
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Sealed cups keep out dirt and water
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Maintenance free
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Compatible with 86.5 mm shells
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41 mm cup diameter
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Easy press-fit installation
Product Code: BB7141B