SPITFIRE FORMULA FOUR CLASSIC SWIRL WHEELS 99D 50MM
99 or 101 Durometer.
Unbeatable lasting performance urethane.
More speed and control on all surfaces.
Unmatched flatspot resistance.
Smooth anti-stick slide.
High rebound compound.
100% true performance urethane.
The #1 shape in skateboarding worldwide. Proven for speed and control.