The Formula Four Conical Full skateboard wheels from Spitfire offer superior performance, durability and grip thanks to their specialized urethane construction. Their smooth surface provides gripping power, while their wide profile ensures excellent traction and stability at high speeds. The Formula Four Urethane delivers abrasion resistance, fewer flat spots, lasting speed on any terrain, smooth slides and more. The conical full shape provides enhanced control and speed through its wider riding surface and cutaway design.