Ricta Clouds Duotones 92A - 54mm skateboard WheelsRicta Clouds Duo Tones Wheels feature 54mm Diameter 92A Durometer White Black Urethane Hard Plastic Core Regular Profile All Terrain Wheels Set Of Four Buy Ricta Clouds Skateboard Wheels at Native Skate Store. The Clouds from Ricta are softer all terrain wheels designed to cruise over rougher surfaces. The Duo Tones wheels White Black are 54mm diameter and poured from 92A durometer urethane. All our skateboard wheels are sold as a set of four wheels.