Sold in a full set of 8 wheels
Hardness: 88a (green) 90a (black) 92a (orange) 95a (white)
The new Roll-Line EMPEROR 59mm X 38mm Professional Roller Derby Wheels represent the start of a whole new class of HIGH Performance Urethane Wheels specifically designed for Roller Derby. This very high quality wheel, is designed to be used on many types of skating surfaces including Skate Court, Sport Court, Concrete, standard wood floors coated with plastic or poly urethane, but also unusual surfaces like, tile type basketball and volleyball courts, tennis courts (Indoor or outdoor), and terrazzo surfaces that are more common around the World for Roller Derby.
The new Roll-Line EMPEROR 62mm Professional Roller Derby Wheels utilize a stiff Delrin hub which is Strong, Light, and with Close Tolerances for Roundness, and Trueness, for the Cage where the Bearings and Spacers are mounted. The Roll-Line Tread is a cast secret Special Custom Urethane Formula, which provides exceptional Grip, while providing great ROLL and has a distinctive outer lip that provides that strong extra grip for tight spaces and turns. The Roll-Line EMPEROR 59mm Professional Roller Derby Wheels have a little more feeling of spring or bounce as they have a higher REBOUND than most other Urethane wheels (except the Helium Indoor/Outdoor Wheels). This REBOUND creates a feeling of smoothness to the roll on the floor.