6806-2RS Stainless Bearing 30*42*7 mm ( 1 PC ) ABEC-3 6806 RS Bicycle BB30 Bracket Bottom 30 42 7 Ceramic Balls Bearings

6806-2RS Stainless Bearing 30*42*7 mm ( 1 PC ) ABEC-3 6806 RS Bicycle BB30 Bracket Bottom 30 42 7 Ceramic Balls Bearings

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