Spitfire 99a Formula 4 OG Classics 58mm Skateboard Wheels Beanie Lining Living Lining® Mapped with

Lining Living Lining® Mapped with Embossed Taffeta and Small Hole Mesh

Perforated fabric provides protection from the elements

and zippered vents to aerate hot hikes

making it the strongest cast truck on the market

Spitfire 99a Formula 4 OG Classics 58mm Skateboard Wheels Beanie Lining Living Lining® Mapped with99a 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. OG Classic Shape Spitfires original cut away wheel shape.