Spinervals Competition 32.0: EXTREME Threshold Training! DVD

Spinervals Competition 32.0: EXTREME Threshold Training! DVDThis is now one my favorite anaerobic Spinverals workout, followed by 34.0, 29.0 and 33.0. Using the Spinervals for indoor training has made a huge improvement in my biking ability. I definitely get a better anaerobic workout riding inside on a trainer than riding outside. The Spinervals series have been awesome, I got a free video from Coach Troy at a Sports Expo and now I have bought 7 others to mix up between anaerobic and aerobic days (especially during mid-west winter months).

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