Aaaah. When floodo1 said the tires were slipping, I didn't connect that with friction and heat. Thanks for clearing that up. If your tires are overheating, will you see those little "stretch marks"? I know on one of my sets of Sorex 28's they have little squiggly lines in the contact patch. It looks like they've been stretched, and they didn't last nearly as long as I thought they would. I suddenly lost traction towards the end of the race, so I figured they got too hot. That's when I saw those lines. What do they mean?
-Josh