DVD Talk Reviewer Holly E. Ordway been sweating away this winter to bring your reviews of a series of indoor cycling workout DVDs that just might be the key to staying fit when the weather turns ugly. Spinervals is a collection of workouts on DVD ranging from the low-intensity Spinervals Fitness 1.0: Ride Strong with Team Clydesdale all the way to the mind and body blowing Spinervals Competition 1.0: No Slackers Allowed. All these exercise DVDs can be done on an indoor bicycle trainer or stationary exercise bike and are great way to keep you motivated on those tough wintertime workouts. Read Holly's Reviews of Spinervals Now.