Spitfire Formula Four Classics 60mm/99a Skateboard Wheels

Formula Four urethane. Formula Four Urethane lasts longer, withstands more abuse and performs superior to all other wheels. Designed to combine all the desired properties of a performance wheel without sacrificing any one attribute at the expense of another. Manufactured using a 100% pure urethane compound, Formula Four wheels out-performed and resisted flat spots longer with less wear than all other wheels. Higher rebound for faster speeds over rough and smooth surfaces with a hard durometer for a smoother, faster ride that won't mush out over time. Designed with an exclusive anti-stick compund that gives a fast/consistent, smooth slide all the way through. Specs: More speed and control on all surfaces Unmatched flatspot resistance Smooth anti-stick slide High rebound compound 100% true performance urethane Holds shape longer