Spitfire Formula Four 99D Radial Wheels tested by Spitfire Team rider Rowan Zorilla. Formula Four Performance Urethane lasts longer, withstands more abuse and perform superior to most other wheels. Spitfire 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:
- Better speed and control on all surfaces
- Unmatched flat-spot resistance
- Smooth anti-stick slide
- High rebound compound
- 100% true performance urethane
- Set of 4