Some bad ass, run you over and spit you out tires! lol They hook Kiid, like no other on a packed sled trail. And if you have some round over inflaited front tires or some mohawk type sand front tire the quad will float nicely on loose snow.
I dont think so Yamaha is 4/115. and I think polaris is 4/100. Look on ebay and see if you can get some cheap wheels and have them remounted. You can sell back these gold wheels easy online too.