SPITFIRE FORMULA FOUR 99A LOCK-IN 55MM SKATEBOARD WHEEL

withstood more abuse and performed superior to all other wheels. Spitfire 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. Formula Four's True lasting Performance Urethane comes not from a single benefit, but from a combination of qualities and features that together produce a truly great wheel, Formula Four Performance Urethane is unlike any other. 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 99a durometer Asymmetrically shape designed for Lock-In grinds