Spitfire F4 Classic 99D Wheels 56mm hardware Red bottom bushing and blue

Red bottom bushing and blue top bushing

Ace has also updated their sizing 33 - 80 for a better fit across multiple board widths

Rounded collar

Spark Tesla

flawless fit

Spitfire F4 Classic 99D Wheels 56mm hardware Red bottom bushing and blueThe 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