Kinetic by Kurt Rock and Roll Indoor Bicycle Trainer (Green) for $399.19

Take your cycling workout to a whole new level with the Rock and Roll indoor bicycle trainer from Kinetic by Kurt. The Rock and Roll is the only indoor trainer that delivers a natural side-to-side motion while you ride. With this unique lateral motion, your core muscles are engaged while you maintain your balance, helping you simultaneously work on both technique and power. The trainer is especially effective during out-of-the-saddle hill climb intervals, as you rock back and forth while powering up the hill. The Rock and Roll--which fits any kinetic resistance unit, whether fluid, mechanical, or wind--offers the most stable frame in the industry.