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Complete Ultegra level press-fit bottom bracket assembly for Shimano HollowTech II road cranks.
Features:
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
Art. Nr. ISMBB7241B
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