For fast going Kickspark sleds and especially for mushing with dogs, this double brake comes in very handy. The teeth dig into the ice simultaneously and give a steady and powerful braking experience. It does not affect your kicking due to its clever design. With the double brakes, you can maximize your speed and safety on the Kickpark sleds! PLEASE NOTE that new brake is suitable only for the new models! (produced from 2012). This is because there werent separate fixing holes for the brake in the older models.