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.

99A Duro is made for speed and lasting control on all surfaces. One of Spitfires most ridden duros worldwide.

Classic Full Shape: Wider version of the classic shape designed for lasting speed and more controllable slide.

53mm x 33.5mm with a 18mm riding surface and Formula Four 99A durometer.