The CycleOps SuperMagneto Pro Trainer provides four distinctly different power curves for different types of training or for the different stages of your rainy-day ride. The four settings--Easy, Road, Interval, and Mountain, each provide different rates of resistance to simulate your training. The SuperMagneto also has a wide, base, which is deal if you want to simulate an attack or climb out of the saddle. Each flywheel is individually balanced for reduced bearing wear and concentrates its mass at its outer edge to allow for coasting. The SuperMagneto also folds up for easy storage or transportation.