I inherited a motorised twin blade belt driven two wheeled slasher with a drawbar which mounted to the towball of an ATV, or my paddock basher.

It worked very well over fairly smooth terrain BUT because the frame was badly designed the belts came off after a maximum of 5 minutes due to the frame flexing. Putting the belts back on was a major and slow PITA. I sold it to a fellow who thought he could fix it - that was over 10 years ago. I've seen him several times since and there's been no mention of that slasher.