Don't worry about jacking this thread. Love this kind of stuff. Love originality. My 250R & 350X still have the original date coded tires. '85 250R - Dunlop KT 576 on the front, KT577A on the rear. '86 350x - Ohtsu P/V 100 on the front with Ohtsu P/V 701 on the rear.
My '83 185s also has the original Ohtsu Pro AMs' on all 3 corners. Would love to know what brand of tires originally came on the '84 Big Red. Unfortunately I am missing the tire information decal on the side of the fender on my '84 Big Red (like the one shown in 200Maniac's pic above). Thanks everyone for your input/opinions - much appreciated.