The Spitfire F1 Parkburner Cardiel Fastburning Swirl are the smoothest rolling, fastest burning. F1 Parkburners are a true flatspot resistant urethane that grips when you need it. Formulated to maintain control on all park surfaces. A John Cardiel pro Spitfire wheel. Available in colorways as seen below. Colors are limited to specific size. See colors below for correlating size. Sizes available as seen below. Wheels sold in set of four.