I'm new to this forum but have started looking for the proper tires for my '68 Honda K1 CL 450 and and '72 K-5. So far good J.C. Whitney still has several choices in the 3.00 X 19 and 3.50 X 18 size from various vendors. Chen Shin being one of them. I suppose Whitney could be selling old tires. The Dunlap Vintage series tires are another choice that look good.