The Spitfire Formula 4 Classics are perfect for pro riders with this 101a durometer for skating street, skate parks, bowls and vert ramps.
Featuring an unmatched abrasion resistance for fewer flat spots, more controllable grip, and longer lasting speed no matter the terrain. Formula Four Urethane was developed to combine all the desired properties of a performance wheel without sacrificing any one attribute at the expense of another!
