valkat

I recently purchased and installed 4 Kumho KH11s because they were highly recommended on tirerack.com
Now I think it was a mistake – it’s a very rough tire. I lost my comfy ride, which I had on my stock Potenzas.
Steering wheel feels every little bump on a road.
Has anyone played with a tire pressure on these or similar tires?
Should I reduce tire pressure, so the ride will be softer? How much then…?

Thanks.
Val.

sloppymax

iTrader: (8)

what cold psi are you running right now?

valkat

I usually put 32 (factory settings)

CHAZMAX

Just great...

I'm very soon gonna get new rubber and after researching (for days) came to the conclusion to go w/ the KH11's.

They're really noticeably rougher?

valkat

oh, yes...

sloppymax

iTrader: (8)

i definetely wouldnt go below 32. i was thinking maybe you were running higher like around 42. i know its late now but i thought the kumho MX would have been a smoother running tire. maybe they didnt have them in the size you needed though.

valkat

not below 32....
and why not? ...30?

sloppymax

iTrader: (8)

i personally wouldnt do it for reasons of lower mpg, wearing the outside of the tread and what feels to me as a decrease of stability in corners. i run 35psi in my 235/50/17 michelin a/s. im planning on replacing mine with nitto 555 in 235/45/17 and running around 38 psi. i woudlnt think 30 is a huge change but i personally wouldnt lower mine, just my opinion.

valkat

I hear you....
But cornering for me is not important; my driving style is not aggressive. I need a comfy ride and good traction on dry and wet roads.

Maximax2

Funny how reactions are different - my Kumhos feel a little stiffer (slightly rougher ride) and I have the PSI at about 34. Plus they cold spot a little.

But I'm not particularly bothered because I was looking for handling and wet traction, and they're much, much better. And they're only a little rougher, possibly because they're wider (I know they're the same size, but they definitely bulge out of the stock rim farther). So I recommend them.

tdogg169

iTrader: (2)

I just bought a new set of Kumho. I also was having a rough ride at 35 psi. I lowered mine to 30 psi. Ride is better but still rough. I think its just the type of tire.

valkat

"they cold spot a little"...
What does that mean???