Hi all. I have what I think is a '79 Panasonic Sport Deluxe. I may be off on the year, bought it used. The interesting thing is it's badged as Cro-Mo and weighs in at 19.7 lbs with the pedals and water bottle cage attached! I didn't want to believe my digital scales back then, so I rushed it down to our metallurgical lab and indeed it weighed 19.7 lbs exactly. It's lugged and still has the original Panasonic seat (worn) and post along with Araya rims. It's a 23" frame. Maybe there were some model names that magically received frames from another assembly line??