I was going to wait till my belts broke before I changed them. They where looking a little rough. I figured if they did break while out mowing I could easily put new ones on. Yeah right!!!! Good thing I did change them in my garage. I could never really do this at a customer house. What a pain to change both belts on my ztr. I want to save money this year and do the work myself. Had to break free bolts and weave belts in tight places. It took about an hour but now I know what it takes to do this. Do you guys change your own belts?