Shimano BB-MT501 Bottom Bracket

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SM-BB52 SHIMANO - Bottom Bracket - Threaded - HOLLOWTECH II - 68/73 mm shell width With better sealing and rotation the SHIMANO DEORE bottom bracket delivers high driving efficienc y. MODEL NO SM-BB52 SERIES DEORE M610 Series THREADED BB SHELL WIDTH_70mm ✔ HOLLOWTECH II BB_Threaded BB type ✔ Threaded BB shell width_68mm ✔ Show more