NEW 2023 Model.
New Grooved thread= more speed.
Modified Internal Profile= greater agility
New external Profile= flexible outer edge increase grip and thrust.
61mm Diameter = better center of gravity
Unchanged contact surface, same great adherence.
Ice wheels will perform very well, with good grip and low noise on the floor
Roll line wheels come as a complete pack of 8 wheels 
Hardness: 88A, 90A, 92A, 95A, 97A