The Spitfire Formula Four Classic Wheel is a 55mm skate wheel in Spitfire's classic shape, finished at a 99D durometer for a firm, fast-rolling ride. Finished in White/Yellow, it carries Spitfire's signature Formula Four urethane formula, trusted by skaters for consistent performance across terrains. The classic shape offers a rounder profile compared to Spitfire's conical wheels, a preference for many street and park skaters. Part of Spitfire's Classic lineup, it's a dependable pickup for anyone after a reliable wheel with genuine Spitfire construction.