The belts on my new flail mower were breaking every few hours that I used it. I had tried a couple different brands of belts with one set being kevlar but all were trashed within a few hours of mowing.

I got tired of replacing all those belts and decided to take a chance by ordering 1" shorter kevlar belts from V- Belt Guys. I received them very fast and got them installed.

That was almost a year ago and those belts are still mowing strong. I inspected them a couple weeks ago after running over a hidden steel cable and choking down the tractor. When pulling the belt cover off I was expecting the worst, burned/ broken belts. To my surprise all three belts showed no signs of slipping, cracking or burning.

Whenever I need belts, I'll reorder these again from V-Belt Guys.

I had problems with my flail mower trashing belts really quick, 4-6 hours of use. Then I saw these kevlar belts and decided to give them a try. They have about 12 hours on them so far and they still look great.
If I continue to get good service out of these belts I'll buy them again when I need them.