I gotta figure that Yamaha got so caught up in the saving weight thing that they changed the wheels to all plastic. In My opinion this sucks. I just went out and checked mine over for a half hour this morning and I so far don't have any of these issues. No rust on my welds, all wheels in place and working. However, this skid will definitely be coming out of the sled this summer and have a real good going over. If I can find rubber wheels to replace the plastic wheels I am definitely going to do it. I will also replace all bushings and put Zerks in the skid.