I'll throw in another thumbs-up for the Michelin Commander II's. Smooth ride, good control on dry and wet rods, can't even feel grooved pavement, and they are said to have about the longest tread life on the market. My '08 C50 came with a just-mounted, brand-new pair, and after almost 4,000 miles they still look new.
I run the stock IRE's. Got 16k out of the rear and I'm at 23k on the current front. I'm on the gulf coast of Mississippi, so I hit all kinds of road conditions from bridge grates to sand and I haven't had a bit of trouble out of them. Was originally gonna switch them out until I rode up to, and on, The Dragon and Skyway. I swear by them now. And they are decently priced. Just my 2 cents.
1974 CB360 - sold 1976
1972 CB750/4 - traded for HD 1978
1974 Sportster - destroyed 1979
2006 VLX600 CD - sold 2018
2017 C50T - living on
I also have a 2009 C50 Special Edition with tubeless tires. A friend with another C50 had Bridgestone Exedra Max tires and recommended them to me. I replaced the original IRC tires with the Bridgestones and they have been an excellent choice. The front tire doesn't track pavement rain grooves and the set gives a great ride on the highway.
Just had new Exedra Max put on. Good god what a difference, bike corners like its on rails and actually wants to corner now, whereas before you had to wrestle it. No more tram lining on the motorway either, overall a much smoother ride tho Ive heard the tread wears out faster than some other brands.