![Spitfire Skateboard Wheels F4 99A Lock-In Full 54mm Formula Four Spitfire Skateboard Wheels F4 99A Lock-In Full 54mm Formula Four](https://cdn11.bigcommerce.com/s-ae3w3/images/stencil/500x659/products/89617/183903/sf-cp-wh-f4-99-lock-in-full-54-4__77701.1685127660.jpg?c=2)
![Spitfire Skateboard Wheels F4 99A Lock-In Full 54mm Formula Four Spitfire Skateboard Wheels F4 99A Lock-In Full 54mm Formula Four](https://cdn11.bigcommerce.com/s-ae3w3/images/stencil/500x659/products/89617/183903/sf-cp-wh-f4-99-lock-in-full-54-4__77701.1685127660.jpg?c=2)
Spitfire Formula Four OG Classics 99A. More speed and control on all surfaces. Unmatched flatspot resistance. Smooth anti-stick slide. High rebound compund. 100% true performance urethane. Spitfires original cut-away shape. Features a wider riding surface shape, lightened with cut away sidewalls. 54mm x 32.5mm, 99A.