So I was riding Friday and things felt a little tight, like it was restrained a bit. So my temp light comes on a little ways up the trail. I shut it down, wondering what the heck is going on. I look underneath to see the hyfaxes are being peeled off! I fire it up when it cools, and have to hit it pretty hard to get the track to even move. So we tow it up to the top of the hill. By the way my brothers sled has a tough time towing it, its an 800 to. Anyway we get up top and loosen the rear wheel kit, and the tension bolts. And move it as far as I can, which is only maybe a half inch. Did not have a problem the rest of the day, it didn't heat up. When I lifted the rear the track spun freely. Its amazing what a half inch more of slack did!