Get off the couch and onto the state of the art MAG TRAINER by RAD Cycle Products. Out of all the trainers we tested, none of them compared to price and the quality of this trainer! Regardless of the weather outside you will be able to stay in shape. The MAG Trainer converts your bike into an indoor cycling trainer. It utilizes a state of the art magnet system which provides magnetic resistance. You can easily increase the resistance by shifting the gears on your bike! These are perfect for the beginner or the professional who wants to stay in shape all year long! This MAG Trainer is one of the quietest on the market--it is a premium quality unit. Now you can watch TV and ride your bike.