Offset design with sublte lip characteristics for increased grid, speed and high energy. Designed to maintain grip. When desired they canh be slid very predictably and smoothly to shed speed. Repeatedly sliding wears down sharp lips allowing for smoother slides. Fore a more slide oriented 70mm wheel check out the Stimulus Freeride wheels. The 4 Presidents are a populat wheel for speedboarding on technical quicker turning courses requiring the quick allcelleration of a small wheel.