These gorgeous 7075 T6 aluminum adjustable ball-bearing hubs are direct replacement associated with standard composite people within the kit. The aluminum hubs reduce steadily the friction and exercise the auto to do more free with additional the drivetrain efficiency. Recommended designed for stock course where super low friction drive train is very important. The aluminum hubs are far more powerful plus much more reliable with a rise of anticipated life. Black coated. Couple of 2.