After 700 hrs we needed new tires on the front of our Toro 52 inch zero turn. The wheels were kind of beat up also, and we never changed bearings either. So I decided to get all new wheel and tire sets. The OEM wheel assembly at the time was $109.00. Toro wheel and Carlisle tire. The aftermarket assembly was $73.00. Red China wheel and a Cheng Sein tire. So here it is 350 hours after. The commy wheel is loosing paint. The commy tire has a small cut in it. We also had to tighten the axle bolt 3 times on the aftermarket assembly. But to be fare the OEM came with a new bolt the reds did not send one along. Not one problem with the OEM Left side is the aftermarket, right is the OEM. 350 hours both still in service and working.