My TMAX ALMOST made it to 10,000 miles. Tire wear was weird... the center of the front tire looked new, but the sides were worn to the wear bars... it almost had a triangular shape. The rear tire wore normally (more in the center than the sides). Guess that came from hard cornering; the TMAX did feel as though it was "pushing" the front when the pace picked up.
I have less than 2,000 miles on the C650GT but so far tire wear appears to be normal. The TMAX OEM tires were Bridgestone Battleax and I replaced them with the Metzeler FeelFrees. Didn't have it long enough after the tire change, however, to gauge their wear compared to the Bridgestones. I SUSPECT the Metzelers would've lasted longer as they were more "touring oriented" than the sporting Bridgestones but I'll never know. I certainly didn't lack for grip or handling after the switch.