Tubular chromoly 3pc cranks featured on the 2013 Eastern Battery are more durable than conventional one piece cranks * The sealed rear hub offered on the 2013 Eastern Battery is a much more reliable option than the loose ball hubs offered on other similar bikes * The Battery offers a slightly longer 20.25-Inch top tube for fast growing younger riders * Features a railed seat for easy adjustment * Alloy 36 hole rims are lightweight and durable