The Saris Mag Plus Bike Trainer is a trainer for all seasons that will help you stick to your fitness plan year-round. This trainer is the perfect way to keep your legs warm when it's cold, dry when it's wet, and safe when it's too dark to ride outside. With this turbo trainer, it's easy to turn your bike into your go-to calorie burner, no matter the season. The Mag Plus is super easy to use, simply attach the handlebar-mounted shifter to change resistance during your workout without having to leave your bike and, if you want to train with Zwift or Rouvy, all you need is a speed sensor. The Mag Plus will become your favorite trainer!