i have try aftermarket v-belt on suzuki visnon, polaris sprtsman, suzuki quadmaster 500, yahama kidoak 400 automatic, polaris sportsman 400, and none of these bike worked good as the oem v-belt after the change. but the buyer wanted to save 25 $. For my wife sportsman 500, she asked me to swap the aftermarket belt for the old oem one because it worked so bad. I will never buy aftermarket v-bet for my own atv.