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High quality Ball Bearings with Si3N4 ceramic balls.The optimum to reduce the friction of your A800 drivetrain!
Especially usefull for any stock class competition where the lowest friction of the drivetrain will result in higher topspeed and more consisten power for the runtime. Black Rubber seal on one side. Metal seal on the other side.
Size: 4 x 8 x 3 mm
