The Spitfire Formula 4 Classics come in at a 54mm diameter and 99a durometer making it a pro wheel stable for skating street, skate parks and bowls!
The Spitfire Formula 4 Classics are built to excel with it’s signature Formula 4 design. 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!
Features:
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Diameter: 54mm
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Durometer: 99a