Spitfire Wheels Formula Four Classic 51mm/99a

The Spitfire Formula 4 Classics come in at 51mm in diameter and a durometer of 99a. This provides an all-around good wheel, with a balance of speed and grip that makes it a good choice for beginners skating street, skate parks, ramps and pools!

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!