The NRG Gen 2.5 Quick Release utilizes all the features of the Second Generation Systems ball-locking quick release system engineered with raised sections to prevent the scratching and stretching of the hub while a self locking feature adds increased safety and functionality, with the added benefit of an upgraded flared ring. 

For all 6 bolt steering wheels

Legal only for use in competition vehicles which may never be registered, licensed, and/or used on public streets or highways; and also for use in other exempted vehicles.