The V2 Aero roller skis are the most versatile roller skis available. the 150SC-S is a short shaft combi ski that offers all the benefits of a skate ski with a ratchet in the front wheel that allows you to stride if you wish. The large diameter pneumatic wheels can be used on surfaces where it’s impossible to roller ski on smaller diameter solid wheels. The skis can be used on dirt roads, bicycle path’s & Rail Trails and on grass. On normal pavement the pneumatic tires provide an extremely smooth ride.