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. Bigheads are a classic wheel that won't fill you up or ever let you down, and they've quickly become one of Spitfire's most iconic skate wheels.
99 Duro Formula Four wheels offer:
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