Spitfire F4 Classic 99D Wheels 56mm hardware Durometer: 78a

Durometer: 78a

Legendary Original Bones Swiss Bearings are the optimum combination of Bones Skate Rated design and Swiss precision manufacturing creating the standard by which all other bearings are measured

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Spitfire F4 Classic 99D Wheels 56mm hardware Durometer: 78aThe Spitfire Formula 4 Classics come in at a 56mm 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 its 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: Diameter: 56mm Durometer: 99D