Formula Four Conical 101D
A true performance conical shape - hand cut for quick response and less weight.
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. Formula Four's True Lasting Performance Urethane comes not from a single benefit, but from a combination of qualities and features that together produce a truly great wheel.
101 Duro Formula Four wheels offer:
- Unmatched flatspot resistance
- Smooth anti-stick slide
- More speed and control
- 100% True Performance Urethane
- Formulated for a harder, faster ride