The head tube is 3D forged-high quality Aluminium has been squeezed under great pressure into this shape. By putting the Aluminum under great pressure, you also change the structure of the Aluminum and increasing its strength. Cut out in the front of the headtube is 10% bigger and we added cut outs on the side…All to help save weight and balance the deck. The integrated cups have also been thickened up to avoid any ovalising from hard riding. You will notice a bend in the down tube. This is not just for looks. It allows the head tube to sit more forward for 120mm wheels. Also when the down tube comes into the deck.. it’s on a lower angle then before.. So this allows more metal to be at the front of the down tube.. Increasing the strength. NEW Front plates made out of NYLON that comes pre installed in all AOSV4 designed specifically for BLUNT slides and lip tricks all the while protecting the deck from damage The plates are replaceable and can be pulled out and new ones put in very easily.The rails of the deck have been widened to better fit all styles of riding., 5 degress of concave, and the back end has a new shape.The brake has a full-length Heat-treated spring steel core, covered by Nylon. Not only does the nylon give it a cool look, it adds grip and dampers the sound of the brake. Brake comes with a 5mm bolt. The new spaces are inserted into the deck from the middle Spaces go in and stay in place while you put the wheel on.