Spitfire F4 Classic 99D Wheels 56mm hardware Legendary Original Bones Swiss Bearings

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

Red bottom bushing and blue top bushing

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

and designed to endure harder impacts than traditional steel bearings

Durometer: 78a

Spitfire F4 Classic 99D Wheels 56mm hardware Legendary Original Bones Swiss BearingsThe 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