Dunlop 606 front (90/90-21) and Dunlop 908 rear (140/_ - 18). 4 of us rode from Clayton, NM to Port Orford, OR last Summer on the TAT. 9 days. I was on a 990R; a friend was on a 990; another on a 950SE. I changed tires in Nevada because I had spares available and there's nothing like fresh shoes. They used a single set each to the coast. They were completely shagged. We ran ultra HD tubes and 25 psi. 0 flats in 2,700 fast, hard miles. YMMV, but I'd use the same set up again.