The Shimano BB-MT800 MTB Press Fit Bottom Bracket is maintenance free with the sealed cups keeping out dirt and water.Shimano BB-MT800 MTB Press Fit Bottom Bracket FeaturesComplete Saint level press-fit bottom bracket assembly for Shimano HollowTech II MTB cranksCups are made from fibre reinforced polymer material which reduces the risk of frame noise and damageSet includes left and right hand cups, inner cover, and inner O-ringsCompatible with 104.5/107 mm press fit frames41 mm cup diameterEasy press-fit installation
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