My wife did not realize the parking break was on and drove a few hundred yards before a puff of smoke let out and she finally realize it was on. Then drove only a few miles after that. Following week we were on a dirt road full throttle 45 mph for 10 minutes and belt shreds! Was it the parking brake from before or the full throttle on the dirt road? 2003 sportsman 500 HO. Thanks for the help. Just bought atv used so no clue if belt was new or original!!!!