Information Roller Skis Roller skis can be purchased thru a variety of stores and mail order firms. Some of the best sources in North America can be found in the XC Ski Expo section. Despite a very specialized market, several brands of roller skis are currently available including ProSki, V2, Marwe, and Swede Ski. The differences between the brands primarily have to do with wheel speed, cost, weight, and tire wear.
Every brand has several models to choose from including ratcheted and non-ratchet options.
Typically the non-ratchet skis will tend to be faster and have slightly harder wheels to counter the agressive skate motions. Your best bet is to go with a ski that fits your particular situation. Super fast skis might seem fun to tear around on if you have a loads of safe, flat bikepaths nearby but they make for dangerous and decidely un-fun workouts on crowded urban roads or on steep, rough roads. Cross Country Ski World recommends contacting folks that have actually used these new products or go to a product demo before investing in something that may or may not deliver as promised. It is perfectly OK to use any pole grip and shaft you would use on snow for roller skiing.