These stunning 7075 T6 aluminum adjustable ball-bearing hubs are direct replacement associated with the standard composite ones included in the kit. The aluminum hubs lessen the friction while making the car to operate more free with increased the drivetrain efficiency. Recommended particularly for stock course where super low friction drive train is essential. The aluminum hubs are more powerful and more dependable with an increase of expected life. Colors coated in XRAY distinctive orange color. Group of 2.