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Shimano BB91 MTB PressFit Bottom Bracket

The Shimano MTB Press Fit 42mm Bottom Bracket has cups that are made from a fibre reinforced polymer material which reduces the risk of frame noise and damage. This complete XTR level press-fit bottom bracket has sealed cups to keep out dirt and water and to give it a longer life span. The bottom bracket will require no maintenance and has an easy press-fit installation. It’s compatible with 92mm shells or 89.5mm shells with a 2.5mm spacer. This set includes left and right hand cups, 2.5mm spacer, inner cover and inner O-rings, so you can install your bottom bracket straight away. Shimano MTB Press Fit 42mm Bottom Bracket Features Complete XTR level press-fit bottom bracket Sealed cups keep out dirt and water Maintenance free Compatible with 89.5 mm (with 2.5 mm spacer) and 92 mm shells Easy press-fit installation Shimano MTB Press Fit 42mm Bottom Bracket Specification Left and right hand cups 2.5mm Spacer Inner Cover Inner O-rings 42 mm cup diameter

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