The X4 top deck features milled holes for unique tweak-free top deck screws and works together the center layshaft location in the chassis. Machined from 2.0mm graphite product, the form associated with top deck has been specifically made to accomplish maximum traction and great steering faculties at precisely the same time. The initial top deck flex settings enables effortless modification associated with flex between 4 different characteristics. The top deck could be connected to the motor mount using these alternatives: 1.) smooth setting - No bushing or bearing is used. This allows maximum flex and offers maximum steering. But the automobile is less stable on-power. 2.) Soft-medium environment - the most notable deck is connected to the motor mount via ball bearing. This environment eliminates a little bit of steering but improves security. 3.) moderate environment - the most notable deck is attached to the motor mount via special screw M3x5.5mm behind layshaft. This environment eliminates some steering but improves stability. 4.) Stiff setting - the most notable deck is attached to the engine mount via special screws M3x5.5mm behind as well as in front side of layshaft. This environment provides maximum stability And also improves steering response.