Skier's Edge System 4 has three frames that vary in
height and skill level.

The first is our flagship model, the Classic Series. The Classic frame is geared towards beginner and low intermediate skiers and has the lowest rail angle with two bands of resistance requiring the least amount of work. The second frame, the Big Mountain Series, is our most popular model. The Big Mountain frame is targeted towards intermediate through expert Skiers, but is versatile enough to satisfy skiers of any ability. This machine has a medium rail angle with two bands of resistance. Finally, the World Cup Plyometric Power is our frame which is designed for highly advanced through expert skiers. The World Cup Plyometric Power is the same machine used by the best ski teams throughout the world. This machine has the highest rail angle with three bands of resistance and requires dynamic movement designed to make powerful skiers.

All platforms and accessories can be adapted to all System 4 frames.