The Orangatang In-Heat is a phenomenal wheel for high grip applications. This wheel is perfect for your Loaded board, or for a board that you want high roll speed and grip. 75mm tall with a Contact patch (width of wheel in contact with ground) of 56mm and a Durometer (urethane hardness) of 77a, 80a, 83a or 86a. These wheels are intended for grippy, hard carving, pumping and speed. They will slide when broken in. The In Heat features an offset design, with hard sharp edges for grip, thick lips for maintaining speed, and rippled inner walls for progressive energy return.