I wanted to know how these two tires compare to each other in terms of traction and treadwear.

Here is my dilemma: I have 4 Pirelli P7000 Supersport tires in size 225/40/18. Yesterday I discovered a small bubble on one of the tires. Obviously, I will need to replace this tire. But, I was thinking that the 225/40/18 is too small of a tire for a 4th Gen Max (am I correct in my assumption? I didn't realize this at the time of purchase.....). So, if I switch to 235/40/18 tires, will there be a noticeable size difference? Will it close up the wheel gap a little? Since I don't have a lot of money to spend, to go up to 235/40's, I would have to sell the 3 Pirelli tires and get 4 new, cheaper tires. This is where the Kuhmos come in... they are like $109 a piece. So, should I replace the Pirelli's with the Kuhmos, going up to 235/40, or should I just order 1 new Pirelli tire? How much would I be able to sell the 3 Pirelli's for (they have less than 1250 miles on them)?

I hope that wasn't TOO confusing... help me out!

Thanks a lot!
Shawn

235-40-18 is the "correct" size but you won't see much of a difference. The difference in sidewall height between the 2 sizes is 4mm. Tire manufacturers aren't consistent in their sizing though so its conceivable that a kumho 235-40-18 would be just as short as a pirelli 225-40-18. Anyhow, I wouldn't bother switching until the rest of your Pirellis are worn out. Just get a new pirelli. It's a far superior tire to the kumho and if you like traction you are going to be sorry you switched. change sizes when you have to replace all 4 tires not just 1.

really? only a 4mm difference? thats surprising....

anyways, how long do P7000 Supersports usually last? And where is a cheap place that I can order just one tire?

Anyone think I should switch to the Kuhmos with the bigger size? Trying to get a variety of opinions here, even though I know Neal TOTALLY knows what he's talking about......

Well it's 4mm of radius. So it would theoretically close 4mm of wheelgap (assuming Pirelli and Kumho are consistent and accurate in their sizing measurements). The overall diameter of the tire (theoretically) would be 8mm larger, almost a centimeter.

but that still means 4mm of wheelgap being closed up... correct? or does that mean 8mm of wheelgap being closed up?

maybe i should get the 235/40's in P7000's? probably a waste of money though buying and selling tires......



AHHHHHHHHHHHHHH I DONT KNOW WHAT TO DO! haha

I had P7000 SSs

they sucked

no need for

haha I really disliked those tires.. they are light but they chunked at the track, wore out quickly and were loud as all get out

I have the P7000 on my maxima and the 712's on my celica...

kumho is excellent, but not so cool in the rain.

p7000 are good too all around... but they're expensive. I bought my car with the p7000, when i replace, i will go for the 712's most likely or the newer kumho tire.

The axel will be raised off the ground 4mm (ie, overall height of the car) and the wheelwell will be filled up 4mm. So in essence, will result in a very minimal amount of gap-fix. Hardly worth spending the bucks for a new set of tires if you have 3 good ones.

Replace the Pirelli and slap on a set of 235's when the rest of your tires wear out (brand I dunno, I use Nitto's and they're ok as long as it's dry.)

I ono what your talking about, these tires handel perfect in rain for me, I have them on and it rains a Crap load in chicago, Actually IMO they have more grip then my all season Michelens on the stock tires

I like my Pirelli P7000s. Had them about 2 years or so now. Great in dry, and good in rain (I don't do any crazy driving in any type of rain) and it rains a whole lotta here in Seattle.

Shawn,

What's up...sorry to hear about the bubble...it's always frustrating buying one new tire and making all your tires have different mileage on them. Anyway, to answer your questions about the P7000 SS longevity, I had them for about 50K miles. They gave good traction in the dry and wet, but nothing outstanding. I think they are better than the Khumos...

Anyway, it just happens that I have 1 slightly used P7000 SS sitting in my garage. Want it?

But it's 235/40/ZR18.....

-Raceen

wow, what a coincidence.... but, wouldn't it throw everything off if i have one different sized tire? if only i could find someone willing to trade a 235/40 Pirelli SS for a 225/40... that would be great.....

i have kuhmos right now and they are a great CHEAP tire. Comparing them to a Pirelli is like comparing a Pontiac to a BMW.

You have got to be kidding. There is no way in hell you got 50K out of the 7000SS. Man, I had those things and got about 23.5 otu of them and that was pushing it. You must have a lot of freeway miles and/or not rip up the corners. I think the P7000ss tires suck. Only tires I have ever owned that i would recommend to anyone else are Michelin XGT-V, Nitto NT-450 and NITTO NT-555. I have the 555 now and that tire grips like a *****. It's quiet, has an incredibly strong sidewall and is wearing really really well so far.

How about some Yokohama AVS100's?

No, I'm serious, 50K miles! But yeah, they were all highway miles...driving from Boston to LA a few times can do that. Right now I have Bridgestone Potenza S-03....awesome tires to say the least...but 12K miles later, I need new ones already.