Review on KSP ATV Wheel Spacers 4x156mm, 2-Inch with 12x1.5 Studs - Fits 2013+ Polaris Ranger, 2014+ Polaris RZR XP 1000, 2015+ Polaris RZR - Includes 3/8“-24 and M12x1.5 Lug Nuts (4pcs) by Joseph Morris

I was hesitant to buy because you usually get what you pay for, but these things worked great on my 2020 RZR Pro XP4. I used them to ride the Oregon dunes for a wider stance with factory wheels and tires. I had to use a standard deep nozzle that fits snugly and file two small burrs on a gasket as such minimal intrusion would not allow the nozzle to be seated. Once there I tested them immediately, hitting pops, sand, mud, water and even jumping a few times. I checked the tight fit several times while driving, not once was there a loosening. A very good buy for the price.