A rear wheel off of my RTV 1100X-c was destroyed yesterday. Both wheel studs backed out and then the wheel bolts loosened up. In the picture the studs were at the 2 and 8 O-clock positions. I last torqued the wheel in April to 80lbft. 75 hours of use since torqued. I chased the threads on wheel flange and they cleaned up really well. All new fasteners (Fortunately I have spare rims on hand) and it is back in service.