Known world wide, Life Cycles are ever-present in every quality health club for one simple reason….they are the best made, most reliable exercise bike on the market. Life Fitness brings that same quality engineering to its home Life Cycle line-up. All Life Cycles run on self-generated power and never need to be plugged in to a wall outlet. Chose from basic programming features or patented 'Zone Training' programming features, which allow the bike to interact with your heart rate and change the bikes resistance levels based on real-time bio-feedback. All Life Cycles carry a lifetime frame warranty, 5-year alternator warranty, and 3-year parts warranty.