Has anyone ever tried this? Looks like it might be kind of cool. Roller Skiing is a non-snow equivalent to cross-country skiing, with a wheel at each end of a long "ski." The skating/skiing action looks very similar to cross-country skiing. The skis have a rachet mechanism on one of the wheels, normally the front, so it only rolls in the forward direction and provides resistance on the "kick" —comparable to grip wax on snow.