F1 Streetburners are a true flatspot resistant urethane that don't sacrafice the slide when you want it. The Spitfire F1 Streetburner Mike Mo Serious Swirl Wheels are formulated to withstand any street terrain. A Mike Mo Capaldi signature wheel. Pro Edition. None faster! 100DU. Graphics at one side. Sizes available as seen below. Wheels sold in set of four.