The Keiser M3+ is as close to fitness perfection as you can get in indoor cycling. Known for its smooth, comfortable, quiet ride, the Keiser M3+ is built to last. The M3+ includes an adjustable seat, adjustable handlebars, adjustable pedals,and a backlit display. In addition, the M3+ is also equipped with a computer that tracks your rpm, power output, calories, heartbeat rate, resistance, and distance. Krislynn is a proud provider of original manufacturer replacement parts for Keiser bikes.