The Formula Four Conical skateboard wheels are lightweight and poured in Spitfire's rider approved urethane formula. This urethane lasts longer, withstands more abuse and performs better than the competition. Pick which duro you're looking for after assessing the varying attributes, 'cause this is getting technical.
Medium - Your classic wheel shape, versatile all-around wheel for street/park skating.
53mm
54mm
56mm