Wisefab Rear Suspension Drop Knuckle KitOur upgraded Nissan S chassis rear suspension kit is designed with racing in mind. We have added some cool and unique features such as a new "compression" design toe arm, upgraded camber arm and reinforced knuckle. First class materials with design optimization have led to major weight reduction. The knuckle weighs ~2,7kg and at the same time can hold 5 6G of load peak at tire contact patch on 1100kg car. S13 Wisefab knuckle has revised kinematics