We are happy to present our special tweak bar, which fits both the XRAY X4 as well as the Awesomatix touring car. The tweak bar is used to push down onto the bulkheads, with the car sitting on a flat surface, to make sure that the chassis is perfectly flat when you tighten the screws of your topdeck. This item is extremely easy to use, and can quickly solve any handling problems caused by a tweaked chassis plate.