Spinner Shift Commercial Indoor Exercise Bike With Belt Drive By Precor Fore/aft micro adjustments on the seat post and handlebars allow for maximum comfort and a personalized fit Comfort grip, precision aluminum handlebars include horizontal and vertical ride adjustments Equipped with an integrated phone tray with dual water bottle holders to store your personal items while you ride Chain tension inspection window provides a direct view of the current chain tension and allows for simple lubrication Accommodates riders 4' 9" (145 cm) to 6' 9" (206 cm)  may vary based on riders inseam  and has a weight capacity of 350 lb. (158.8 kg)