Hands On Bike: Avanti Inc 3: New Bottom Bracket SM-BB52
Shimano SM-BB51 - End of life - YouTube
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-BB51 Bottom Bracket Cup Set HollowTech 68/73mm BSA Deore SLX XT BB51 bottom bracket w/ 3 original gaskets BB52 - AliExpress Sports & Entertainment
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
Happy Date Bicycle Bottom Bracket BB52 Hollowtech Bsa 24 BB51 Central Motion Axle Crankset Bearings for Shimano/for Haomeng/for IXF - Walmart.com