Did a 600+ miles on the tires, here is my impressions so far. The install shop did not seem to do a good job with the balance as there was a vibration coming from one of the front tire that was annoying. A check shows it was at 36 psi, like the rears while the other was at 38. Adding some air seemed to resolve it however, the next morning, there was still a vibration, a second balance and the next morning the tire pressure was all over the place. I added air while they were cold, goi1 psi above normal. The vibration was there again but it was one of the rear that showed 34 psi. After a few miles, it went away, I guess there is some flat spotting on.
on my 500+ mile drive today, they were fine and felt quite good on the Sport setting of the Mando unit. My custom Sport setting was a good match with these tires but is a tad firm for anything than smooth roads, for me, but I preferred it so much at high speed runs. When just cruising, I put it in Sport on the Mando App, it provides a good balance of ride comfort and handling. The tires are grippy and responsive and the initial noise has gotten better. It used to be a tad loud over concrete sections but not anymore. This is one tire I think KIA could use on the Stinger and most owners would be happy, for an All Season tires, it does quite well. If Michelin had made these size for the Stinger, I would have gone for those but this is just a really good fit for the car. Now, I’ll have to rework my other Mando setting to find a setting to do a better comfort setting that isn’t bouncy. Tried the Apps Comfort setting and it was just too bouncy, it felt like the 2018s comfort setting.
I did notice some extra vibrations from my rotors, once the tires warmed up. I was able to make it almost go away with some hard braking that was planned but, an unexpected few brought the vibrations back. I’ll have to replace the rotors and pads at all 4 corners, jut to make sure that issues is finally resolved.