I own a Ross mountain bike which i purchased new in 1982 or 83. Its a really heavy bike and i have tested its durability over the years and its held up well. its really the only bike i've ever had but it fits me so well i dont see any reason for buying another bike. its chrome-plated, has shimano gears and dia-compte brakes. the seat says "ross" and the tires say "ross bicycles". does anybody know if there is a serial number on the frame or its location?