Product Details:

Shimano BB91 MTB Press Fit Bottom BracketComplete press-fit bottom bracket assembly for Shimano HollowTech II MTB cranks, for use with Specialized frames with a 84 5mm bottom bracket shell width 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 Frame Shell Width: 84 5mmCup Outer Diameter: 42mmCompatibility: Specialized frame specificA 2 year warranty is offered with all Shimano products from Chain

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