ACE Trucks 1/16" Shock Pads Black Skateboard Risers 2pk These high-quality shock pads are made by Ace and are 1/16" high. Shock pads, sometimes known as risers, are plastic pads that can be inserted between the skateboard trucks and deck to raise the overall height of the skateboard and help prevent wheel bite. They are used as a shock absorber by reducing the risk for stress cracks where the deck and the trucks meet.