Maximize your RPMs and cadence to be at the front of the peloton with a sturdy bike trainer to practice on in the off season. Bike trainers allow you to train in the comfort of your home with your road or mountain bike, so you can stay in peak condition throughout the year. Heavy-duty, wide-leg designs provide stability, keeping your ride smooth and level. Fluid bike trainers gradually increase resistance as you pedal faster, while magnetic bike trainers offer fixed resistance, so you can use your shifters like you would on the road. When your training session is over and it's time to put the bike away, folding bike trainers make storage simple.