I had my ROPS down and hit some wild bumps and then noticed the rattle. I am guessing it is the black uprights vibrating on the sheetmetal cover of red tank. I cut some tube and wiggled it in there. Rattle gone...
mine rattles also.sheet metal over fuel tank contacting rops left side. temp fix small piece of cardboard from case of beer.
bad news temp fix
good news had to drink beer first