we have been happy to introduce our newest technological innovation machines effective at jogging at speeds exceeding 500 RPM. we have been the only manufacturer featuring machines using this degree of speed, https://www.youtube.com/watch?v=-nQTR6bXhfU&list=PLZ3DkIWtVYetfvXsAvY04--yisQJg2WWI&index=9&pp=iAQB