Roll-Line Devil Roller Skate Wheels Blue 42D - 8 pack The iconic Roll-Line Devil roller skate wheels are designed for high-level artistic roller skating, and to adapt your skating to many different surfaces, particularly very slippery ones, without compromising on speed and roll. Roll-Line Devil wheels are equipped with a rigid hub that allows them to roll well, without incurring the typical flattening that is expected with very soft traditional wheels, or the slowdowns of polyurethane wheels. The tread is produced by injection of a mix of thermoplastic polymer materials. The rounded finish allows for use with little to no adjustment time. It is possible to combine these wheels with the Roll-Line Professional wheels for a perfect balance between grip and smoothness. Size: 57mm x 24mmHardness: 42DSurface: Very slippery surfaces Please note: Wheels are sold without bearings. If you are transitioning from Magnum/Giotto to Devil, it is good practice to consider a lower hardness with respect to the one previously used (eg: Magnum/Giotto 49 -> Devil 47) A 'D' wheel is much harder and faster with less grip than an 'A' wheel, with D-scale numbers often starting where A-scale numbers stop (around 100A/101A). Sold as a set of 8 wheels. Brand: Roll-Line
