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Correct Tire size

 
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Old 07 Feb 2004, 09:08 pm
Cool Cruiser
 
Join Date: Sep 2001
Location: Hammonton, New Jersey, USA.
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Default Correct Tire size

I have starting to shop for some new wheels and Tires and I have been getting different answers from different people.

What is the proper size for a 17 X 7.5 " wheel to keep your speedometer correct.. I now have 205/55/16. I have been told 225/45/17 from one person and 235/45/17 from
someone else

225/45 is suppose to be the same height and 235/45 is suppose to be a little taller

Who is correct ???
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Old 07 Feb 2004, 09:52 pm
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Grouch, you should stay within 3% plus or minus of the orginal tire height. Use the links below to check your present tire size compared to the new tire size you select.

http://www.miata.net/garage/tirecalc.html

http://www.dakota-truck.net/TIRECALC/tirecalc.html
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Old 08 Feb 2004, 01:50 am
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Thsnks for the links.

The 225/45 is the closest to the stock 16 so the tire guy that told the 225/45 is correct. The 235/45 size is off by 1.24 miles per hour at 65 vs .25 on the 225/45. Not a big difference but shows how little some of the tire stores know about plus sizing
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Old 08 Feb 2004, 02:43 am
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I'm running 225/45's on a 17 x 7.5 in wheel with 42mm offset. 235/45 would not fit with this combination, they would rub against the strut. With an offset of 35mm a 235/45 might work, but as you said the odometer will be off more.

I'm happy with the 225/45's.



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Old 09 Feb 2004, 02:41 am
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the diameter of tires (of the same numerical size) can vary amongst the various tire manufacturers. check the diameter of the tires that came with your car with the tires that you want to put on your pt now. the tire rack is a good source of information on line, or call tire stores that carry your original tires and get the dimensions from them. compare that spec with what you want to buy, and you'll be in good shape for making your decision. changing the diameter will affect the speedometer and if you get different diameter tires between the front and the rear, that will affect your anti lock brakes. let us know what you end up buying and how they are working for you.

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Old 27 Jun 2009, 08:36 pm
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Default Re: Correct Tire size

I want to upgrade my 01 PT and I'm looking at the Foose Legend wheels and some of the sites throw in a set of tires blah blah blah. But the tires they throw in are 205/45R-17 or 215/40R-17.

1st. I ran the #'s and a 205/50R-17 is exaclty what I need to get very very close to the factory specs.

2nd. the wheel is 17x7, will that fit the PT and will the bolt pattern?

3rd. If the wheel fits, will the tire?

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Old 27 Jun 2009, 11:33 pm
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Default Re: Correct Tire size

I just looked up the specs for the Foose Legends for the size 17x7, and the bolt pattern comes in either 5x4.50 or 5x4.75. Neither of those bolt patterns fit the PT (5x100).
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Old 02 Jul 2009, 05:31 pm
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Default Re: Correct Tire size

Ok, cool. But now I'm looking at the same wheel but in an 18x8. The tire will fit height-wise, but what about width-wise?

Will I have upgrade to a 215 insted of the stock 205?
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Old 02 Jul 2009, 06:04 pm
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Default Re: Correct Tire size

As 808 just pointed out on your last choice, the PT bolt pattern is 5X100. Take a look at this site, it doesn't look like any of the Foose Legend wheels will fit the PT.

Newstalgia Wheel, American Racing Wheels, Boyd Coddington Wheels, Billet Vintiques, Colorado Custom Wheels, Cragar Wheels, Bonspeed Wheels, Foose Wheels, Radir Wheels, TQ Chrome
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Old 02 Jul 2009, 11:16 pm
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Default Re: Correct Tire size

I used the website below and punched in the an 01 PT Cruiser and the 17x7 Foose Legend wheels were available.

Store
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