I was riding the other day and noticed small longitude (1-1.5 cm long) dry rotting tear along the tire. I probably have about 2-3K mile on the tires. They are not worn out and I do ride frequently. However I live in Texas and the bike can see temperatures as high as 140 in the garage. I took the tire off and inspected inner surface and it looked fine. Is it time for new tires or am I fine for now?