evo.com | Spitfire Skateboard Wheels > The Spitfire Formula Four 97d Radial Full T-Funk Raw Skateboard Wheels cruise thanks to their wide platform and durable rubber that's made to last. 97a Durometer Offers more grip than harder wheels and more slide than softer wheels. Great for beginners wanting more control on smooth surfaces or for filmers looking for a smooth roll. Radial Shape Round edge design for control, speed and a responsive slide. 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. | Spitfire Formula Four 97d Radial Full T-Funk Raw Skateboard Wheels 2027 - 57 in Red | Rubber