So I bought a 2018 Sportsman 570 EPS brand new, thing is a beast. However, in the first 6 months I had to replace the ecu and throttle housing..... pretty discouraging, thankfully warranty covered it. With repairs finished, all is well and it kills it on the trails again. After a year of riding, the stock wheels and tires weren’t doing it for me so I decided to upgrade to Kenda bear claw htrs with itp hurricane wheels. I went a little bigger than stock and got 26x9x12, 26x11x12, and went 8x cause I ride on Northeast US rocky trails. I was pretty happy with this setup(minus the loss in suspension comfort due to the 8x ply, I really didn’t think I’d lose as much as I did). I didn’t notice any real drop in power, nothing that required a clutch kit, and nothing was rubbing. A couple months later, Eps started struggling.......skipping, randomly pulling or randomly preventing me from steering while hitting the trails aggressively, pretty scary when you have to turn now or hit that tree or boulder. I replaced the speed sensor thinking it would be a quick cheap fix, no dice. Brought it in to the dealer.......needs a new EPS unit with install for $1900. My service guy is cool so he put a claim in with Polaris and got a charity claim so they actually covered the replacement, pfewww. Now..... do I go back to stock size tires and ditch the 8x ply heavys to a 6x or less????? Have those of you running larger tires and a heavier ply had any issues with your EPS? Was this a fluke and I just had a doomed vehicle to begin with?????