Longer-lasting, street-tested rolling excellence.
Street-tested and approved by the Spitfire team, Formula Four Classic Wheels feature the highest performing urethane available within Spitfire's line of wheels. The Formula Four wheels offer the ultimate in flatspot resistance, higher levels of speed and control, and smooth anti-stick slide.
- Formula Four urethane
- Hardness rating of either 99A (blue) or 101A (red)