In order to become a stronger cyclist, you need to overload your system and break it down.

Overload followed by rest and proper nutrition allows your muscle to rebuild and become stronger. In Spinervals 4.0 - Muscle Breakdown, you will experience a level of training intensity that does just that breaks the muscle down! A variety of effective interval sets in this 45 minute workout add up to one of the best indoor cycling workouts ever produced! Length: 45 minutes. Difficult level: 8.5.

If you want to become a faster cyclist, you need to add interval training to your workout routine. Doing intervals is like strength training on your bike. If you want to move up in the pack, decrease the time trail time, speed up the bike leg in the triathlon or simply drop your training partner and complete two Spinerval Workouts a week.

Spinervals DVD / VHS workouts are like having a personal coach in the privacy of your home. Coach Troy guides you through a complete routine from warm-up, workout and cool down. Difficulty levels are 6.5 to 9.9 on a scale of 10. The series of 23 titles will challenge any cyclist. Collect the whole set for daily variety.