Spitfire Formula Four OG Classics 99a 53mm

Spitfire Formula Four OG Classics 99a 53mm

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The Spitfire Formula 4 OG Classics come in at 53mm in diameter and a durometer of 99a. This provides an all-around wheel with a faster roll speed and more slide to it! 

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!