Suspension geometry upgrade with fine Ackermann adjustment. The geometry can go from the usually used rather parallel steering configuration to the strongest possible Ackermann effect (most difference inside to outside wheel steering angle). The front hole is intended to use the range like the F110 SF4 kit setting, the rear position is the one recently used by the team at races. The setting can be fine adjusted with the well-known inserts in 6 positions. The more forward on the center lever, the more parallel the steering, and thus more aggressive. The far rearward the center lever, the more cornerspeed and precision.