Powerslide wheels for inline skates per 4 pieces With these wheels you can go for miles on your skates again! These wheels have a hardness of 85A. Perfect for the skater who wants to go fast. Due to the high hardness, the wheels have hardly any resistance, so that high speeds are achieved. Soft wheels have a hardness of 76A to 82A. Hard wheels have a hardness of 84A and higher. The hardness of the wheels affects your speed and grip. Soft wheels have an average lifespan, good grip, low speed and more shock absorption. Hard wheels, on the other hand, have a long lifespan, less grip and less shock absorption. - Dimensions: 90 mm - Hardness: 85A - Color: gray - Material: Polyurethane - Profile: Race Supplied without bearings.