Spitfire Wheels Formula Four F4 Classic 99D 52mm

Spitfire Wheels F4 Classic

Size: 52mm

Hardness: 99d

Classic Shape  The #1 shape in skateboarding worldwide - proven for speed and control.

99a Durometer  More speed and control on all surfaces. Unmatched flatspot resistance. Smooth, anti-stick ride. High-rebound compound.

Formula Four Urethane  Formula Four urethane is unlike any other. Both in the streets and under high-speed stress tests in Spitfire's lab, Formula Four wheels retained more material, coned less and kept their original shapes and sizes longer than any other wheel.

High Rebound Compound