I use modern tires, though you could put Dunlop K's on it.
I am running an Metzler ME 33 Lazer 100x90 V18 on the front, and a ME 77 Perfect 4.00 18 on the rear. I have progressive springs in the front, and aftermarket full covered shocks in the rear. It handles quite nicely. I used to enjoy dusting mid seventies 4 cylinder Japanese bikes in the corners. “Follow me, and be brave!” I am getting a little less aggressive in my older years though, and after two accidents, will likely mellow even more....My peg rubbers do get a little warn on the bottom though.
The tires are all black, so from a distance they look kind of stock, though the front is a little lower profile than stock, and the rear is much bigger than stock, but I like it that way. I have run the Dunlops on it, but I eat them up too fast!