The Powertorque we have had since new doesn't have any tread left either. It usually only gets to cut/slash the veggi garden once every 3-4 weeks.
However, the Rover Thoroughbred catcher mower has done the same amount of work hasn't worn down the wheels. The plastic is a lot harder on the Rover and they don't get subjected to the vibration like a 2 stroke though. Can't say the same about the silly plastic Briggs fuel tank however�
