y2kse

iTrader: (1)

Pirelli has reintroduced their P6 and P7 tires. The P7 is the higher performance version of the two, has a W speed rating and a 94 load rating in size 225/50R17. For more info on the P7, check out:

http://www.pirelli.com/en_42//tyres/...productid=2466

These tires were featured in the September 2001 edition of Sport Compact Car, pgs. 172-174.

I just sent an e-mail to Tirerack.com asking how soon they'd have the P7's in stock and what the cost will be. I'll keep you posted.

dracip

Let's hope others manufacturers will follow, only Bridgestone and Michelin (with the Pilot XGT Z4) made that size so far. Nissan, by the way, seems to like odd choices for tire sizes : the new Altima wears 215/55-17 Potenzas. Try to find another brand of that size ...

Y2KevSE

iTrader: (13)

Good find!

dracip

Thanks! that's the kind of specs I like to scrutinize. Speaking of tires, I found on the Tire Rack site that 2 brands of 245/45-17 would fit on the 7 inches wide OEM wheels : the Pirelli SuperSport 7000, and the Goodyear Eagle F1 GS EMT runflat. I suppose the higher sidewall allows that (compared to the 235/45-17, not recommended below 7.5 inches of width, but I'm wondering if any of you ever tried it )

WILLSE

they fit i have toyo proxes 245/45/17's on my car enough of the arguing it fits it fit the stock rims and it fits the new rims i just bought and guess what both have 7 inch rim width!! it handles good but slows u down in a straight line! when it comes time to buy new tires i am gettin 225's again!

dracip

OK, thanks; I didn't mean to argue, I was just reporting data from the manufacturer's charts. It's always interesting to know when there are alternatives.

y2kse

iTrader: (1)

The U.S. Tire and Rim Association specifies that the minimum acceptable rim width for tire sizes 235/45R17 and 245/45R17 is 7.5". As a result, no tire manufacturer in the world will approve the use of 7.0" wide rims for those tire sizes. In every case WITHOUT EXCEPTION, manufacturer specifications that indicate otherwise are either in error or a misprint. Don't believe me? Call the manufacturers yourself. But if you want to save some time, don't bother. I already have.

You would be well advised to disregard statements to the contrary from a retail outlet or ANY MEMBER OF THIS FORUM. Keep in mind that just because a tire appears to fit properly on a rim, that doesn't mean it's safe.

Ludacris

iTrader: (11)

Sorry for the newbie question but what does 235/45R17 stand for? I know what 17 stands for, but not 235, 45 or R

y2kse

iTrader: (1)

Here you go, Ludacris:

http://www.tirerack.com/tires/tiretech/sidewall.htm

Ludacris

iTrader: (11)

Thanks for the link, so basically 235 is the width in millimeters, 45 is the ratio of the sidewall height compared to the width ?

LoveSick

Dont even think about it man! Your dad can take care of chaning tires! Besides, you have 16"!

dracip

[QUOTE]Originally posted by y2kse
[B]The U.S. Tire and Rim Association specifies that the minimum acceptable rim width for tire sizes 235/45R17 and 245/45R17 is 7.5". As a result, no tire manufacturer in the world will approve the use of 7.0" wide rims for those tire sizes. In every case WITHOUT EXCEPTION, manufacturer specifications that indicate otherwise are either in error or a misprint. Don't believe me? Call the manufacturers yourself. But if you want to save some time, don't bother. I already have.


Thanks for the precision, and sorry for the misinformation, I thought I could trust the info on the site.

UMD_MaxSE

iTrader: (1)

yup.... to figure out total wheel diameter:

2*(235*.45) mm + 17 in * (25.4 mm/in) = diameter in mm

BTW, hopefully these new tires are a bit more cost-effective.

Ludacris

iTrader: (11)

LoL Is it too much to learn?

thanks UMD

y2kse

iTrader: (1)

I hope so too, UMD. I also hope they live up to the reputation of their namesake. Time will tell.

y2kse

iTrader: (1)

[QUOTE]Originally posted by dracip
[B]You're not alone. Every tire manufacturer I spoke to who indicated that their 235/45R17 and 245/45R17 tires could be mounted on 7.0" rims stated that their specs were in error and agreed to publish corrected specs on their websites. However, I suspect it will take these manufacturers quite a bit longer to get the word out to their retailers.

If you're ever in doubt, contact the manufacturer directly and tell them your concerns. Sometimes that's the only way to get to the truth.

PS: I just checked the Nitto website and they've already corrected their specs for the 555 Extremes.

Paul6speed

I think that Pirelli said that was a misprint? If you go to their own website, you see that 7.5" is the minimum.

http://pirelli.pearlcomm.com/pneumat...S_dim_data.htm

y2kse

iTrader: (1)

I just sent the following e-mail to Sport Compact Car:

"The September 2001 issue of Sport Compact Car included an article on the new Pirelli P6 and P7 tires on pages 172-174. I contacted Cooper Tires (Pirelli's US Distributor) at 800-854-6288 and was informed that Pirelli has no plans to import either of these tires into the United States for commercial distribution. I was hoping to impose upon your good offices to determine if Cooper Tires' information is correct."

BTW, neither the P6 nor P7 tire is listed on Pirelli's US Website. You have to go to Pirelli's Worldwide Website to get any information on them.

PS: You are correct Paul. No tire manufactured by Pirelli in sizes 235/45R17 or 245/45R17 is approved for use on 7.0" wide rims.