Lifecycles are the #1 preferred bikes in the world. This is their Top-of-the-Line, Commercial Grade unit. Lifecycles proven track record distinguishes these Exercise Bikes from all other bikes in the industry, offering you great reliability, longevity and superb ease of use. The smooth belt drive system is quiet, durable, and virtually maintenance-free. They offer Polar® hands-free heart rate monitoring enabling Heart Rate Zone, and also Lifepulse® Contact Heart Rate Training®. These cordless units handle the daily rigors of the most demanding facilities and are exceptionally well suited for home use too.