If you suffer from back or knee issues this bike is ideal, a 2-inch-thick back pad supports your lower back, and the horizontal position is knee-friendly as it alleviates pressure. As the Start Bike is battery powered you can workout anywhere, easily set the seat length to suit your body, sit on the wide foam seat and cycle instantly. The marcy start bike is blissfully straight forward. Simply sit on, press on, and pedal away. No complex console set up needed. Manual resistance system. Hand grip . Console feedback including: time, speed (km), distance (km), calories (kcal), odometer (km), pulse rate. 8 level tension control. Pedal straps. Adjustable seat. Maximum user weight 110kg (17st 5lb). General information: Batteries required 2 x AAA (included). Size H95, W63.5, D140cm. Weight 27kg. Transportation wheels. Packed flat. Manufacturers 2 year guarantee.