Dunlap Direzza Z1 star spec for SLk350
I'm a bit of a newb so not the most knowledgeable. Many of my friends have been raving about these tires and I really want to dump my Pilot Primacy tires b/c they have the worst tire roar of any tire I've ever owned. I was thinking about upgrading to the D1 direzza b/c these pilot primacies just aren't very good performance based tire. My two options are:
option 1: 225/45/17 front , 245/40/17 rear
option 2: 225/45/17 front, 255/40/17 rear.
The cost difference is only like $10, but my concern is that the 255s weigh 2lbs more per tire which I don't like adding unsprung weight (26lbs for 245, 28lbs for 255).
My second concern is the fact that going with a wider rear tire will give me better straight line traction but I am afraid it may disrupt the handling behavior of the car. I really like the the way my car handles so I don't want to induce more understeer by upgrade to wider tire in rear. Which one would you recommend? thanks
The kuhmos are roughly $20 cheaper per tire and they weigh 3 lbs less per corner (23lbs vs. 26lbs) but the drawback is that I hear Direzzas have superior handling characteristics.
I have had kuhmos in the past (the MX) and been very happy with them). can anyone compare the two and say which one is really better? To me the kuhmos appear to be a better deal but they aren't the prettiest tires ever although they do look meaty, the sidewalls are very square.
Any suggestions would help. thx
I was trying to classify the Direzza Z1 but on your survey section its not even listed yet under either catagory since its so new, thats why I was sort of thrown off a bit. I appreciate your input.
Between Kuhmo MX & Direzza Z1 which one is better in the wet? I had kuhmo MX and in extreme wet conditions they could have a tendancy to hydroplane, I heard Z1s are better in the wet (as your tests show). Thanks



