Mag TrainerIf you're looking for an easy way to ride your bicycle indoors, you've found it. Simply connect the trainer to the rear wheel of your bike, hop on and pedal away. Plus, the Mag comes with five adjustable levels of resistance so you can adapt every ride to your liking. Product Features Magnetic resistance unit provides a quiet and frictionless ride. Linear resistance boosts workout intensity to match each pedal stroke and gear click. Features five