Ricta Wheels Dynamics 52mm Chrome Core Black Gold 99a is the result of two decades of work refining cored wheel technology. The latest Ricta Cores deliver an unparalleled speed and increased momentum, while the premium urethane compound offers unbeatable smoothness and retains shape stability upon impact. This combination is ideal for tricks, enabling quick rollaway. Brand: Ricta Wheel Diameter: 52mm Wheel Durometer: 99a Road Surface: 18mm Wheel Width: 31mm SKU: 22222830