Shimano SM-BB71 PressFit Bottom Bracket 86.5mm
Description
Shimano SM-BB71 PressFit Bottom Bracket 86.5mm The Shimano SM-BB71 PressFit Bottom Bracket 86.5mm is a complete Ultegra press-fit bottom bracket assembly for Shimano HollowTech II road cranks. The cups are sealed to keep out rain moisture and debris and constructed from fibre reinforced polymer material to reduce the chance of frame creaks. This bottom bracket has a 41mm cup diameter and is compatible with 86.5mm shells.
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