My K16GT was delivered with Bridgestones. The Front tire is defective. Has a vibration @60 mph. My dealer ordered a new one the 2nd of JULY. It turns out the Stones are Not Available. They ordererd me a set of Metzelers, Still waiting. As for Avon Tyres, I had a set on a K1200LT. They lasted less than 5000 miles. Yes, I ran them with the correct tire pressure.
American Motorcycle Tire in Scottsdale, AZ. has good prices!