The Monark pendulum balance ergometer is the world146s most used test cycle for fitness testing. The only approved test cycle for the U.S. Air Force and Federal Fire Departments.Features Include149 Fully adjustable seat 149 Easy to calibrate pendulum balance.nbsp Set work load resistance in Newtons or kilopounds.nbsp Brake power in watts at 50 and 60 RPM149 Protective flywheel cover149 Wheels for easy transportation149 Electronic meter that shows RPM, heart rate, time, speed, distance, calorie consumption, and power in watts149 Polar compatible heart rate monitoring149 Heavy duty frame149 1 year guarantee.