Shimano SM-BBR60 Bottom Bracket - English 68mm No gender Spider silk like Vectran™ has

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Shimano SM-BBR60 Bottom Bracket - English 68mm No gender Spider silk like Vectran™ hasAll bottom brackets are not created equal. That's why Shimano bottom brackets outlast almost all others. Superior sealing, ultra tight manufacturing tolerances and quality bearings combine to make a bottom bracket that rolls freely and never develops play. Bottom bracket cups for Shimano Ultegra FC 6800 Hollowtech II cranksets. Specs: Actual weight 76 grams Compatible with all Shimano Hollowtech II road cranks Advanced sealing technology reduces