Shimano XT M8000 Bottom Bracket BB-MT800 BSA 68/73mm Replaces BB70 use for M8000 M7000 - Price history & Review | AliExpress Seller - Yiwu Donglue Bicycle Parts Factory | Alitools.io
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 Bottom Bracket user reviews : 2 out of 5 - 1 reviews - mtbr.com
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