Spitfire Formula 4 features more speed and control on all surfaces, unmatched flatspot resistance, smooth anti-stick slide, high rebound compound. 100% true performance urethane.

Details:

• The Conical Full is a wider version of the Conical Shape. 
• Wide riding surface, cut in sidewalls to decrease weight.
• A solid, controllable shape for all terrains.
  
• This wheel measures 54mm and Formula 4 99A durometer.