Shimano XT BB-MT800 English Threaded Bottom Bracket – The Path Bike Shop
Amazon.com : Acekit Bike Bottom Bracket Wrench 16 Notch for Shimano BB51/BB52/BB70/BB71/BB91/BB92/RS500/MT500/SRAM GXP Series BB and Other External Bearing Bottom Bracket Cups with Outside Diameter of 44mm-Black : Sports & Outdoors
Shimano SM-BB70 Deore XT Hollow Tech ll Bottom Bracket - RRP £30 for sale online | eBay
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Shimano SM BB70 Bottom Bracket user reviews : 2 out of 5 - 1 reviews - mtbr.com