Axle's repeatedly, Belt, Frame, Clutch, Throttle cable freezeing up when riding in snow. Now to be fair..... I rode it like my bike, jumped it, mudded it, hill climbs, and rolled it several times. Mine was the first complete frame replacement Valley Atv did. I went thru 8 axles, 2 frames, 3 roll cages, 4 wheels, 4 sets of plastic. Ended up making a gusset set for the frame and a custom roll cage with doors. Still have a good bit of RZR parts in the garage if you are interested. The rzr cookies, they go between the frame and plastic on the from to stop the frame from punching holes in plastic, most of a LSR gusset kit, and intake kit. Prolly some other stuff too but I'll have to look.