Spinner Ride Commercial Indoor Exercise Bike With Chain 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 Constructed with a proprietary steel tube frame contoured for strength and sweat resistance 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)