Spitfire Wheels - F499 - Grant Undead

Experience increased speed and control on any surface with 99a durometer. Enjoy unmatched flatspot resistance and a smooth, anti-stick ride. The high-rebound compound of Formula Four urethane is unparalleled, proven by its ability to retain more material, cone less, and maintain its original shape and size during high-speed stress tests in Spitfire's lab and on the streets.