Question about tires. - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
 
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post #1 of 12 (permalink) Old 05-03-2009, 04:31 PM Thread Starter
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Question about tires.

I don't know much about tires, but I have 225/40/R18 Hankooks. I want a little taller of a wall. If I go with 45 will that still fit the rim fine?

I know the width (225) and radius (18) can't be changed without changing rims, but can the height (40) be changed to a 45 without new rims or any problems?

Thanks
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post #2 of 12 (permalink) Old 05-03-2009, 04:37 PM
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Quote:
Originally Posted by ekim401 View Post
I don't know much about tires, but I have 225/40/R18 Hankooks. I want a little taller of a wall. If I go with 45 will that still fit the rim fine?

I know the width (225) and radius (18) can't be changed without changing rims, but can the height (40) be changed to a 45 without new rims or any problems?

Thanks
I seriously have to answer your question with a question. The sidwall of that "40" in the code is the profile of the tire and with the exception of comfort, the lower, the better -- why would you want to change it?

The lower the profile, the less flexing the tire has from side to side, which is better for handling. The ride is bumpier but stiffer is better - ask the wife! ;)

ps. if you're tossing 18 inch 40 profile 225mm hankooks to change your tires, i imagine there is quite a few people to buy your tires if they're in good shape.

Last edited by nerd; 05-03-2009 at 04:48 PM.
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post #3 of 12 (permalink) Old 05-03-2009, 05:14 PM Thread Starter
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The problem is that there is too much room between the tire and the wheel well on my Stratus. It looks awkward. Other than that, the bumps aren't too bad with the 40. I imagine it would be even better with 45.

I'll gladly sacrifice handling for a better look and better ride. They are in great shape, just looking to trade with someone local who has 22/45/18 on Craigslist.

Thanks for the answer.
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post #4 of 12 (permalink) Old 05-03-2009, 05:49 PM
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It will work fine, but you will loose performance in turns and handling will be a bit off from the regular tires in turns...
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post #5 of 12 (permalink) Old 05-03-2009, 06:33 PM
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On the 225/45-18, the sidewall is 1/2" bigger. IMO, there is a chance that it will rub on something now.

Heres a really good site to help you out
Tire size calculator
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post #6 of 12 (permalink) Old 05-03-2009, 06:38 PM
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Also keep in mind your speedo reading will be off with the new tires.
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post #7 of 12 (permalink) Old 05-03-2009, 10:39 PM Thread Starter
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Thanks for the link. Apparently right now I'm 1.5% too fast and after I'll be 2.0% slow.

Here is the tire now:



From this angle the left side looks closer than it is, and the top (as you can kind of see) has a shit load of room.
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post #8 of 12 (permalink) Old 05-03-2009, 11:59 PM
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Big rim... Small caliper and disc :-p
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post #9 of 12 (permalink) Old 05-04-2009, 01:37 AM
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Nice looking rims... Lets see a pic of the whole car
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post #10 of 12 (permalink) Old 05-04-2009, 01:48 AM
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Quote:
Originally Posted by Justsomeguy View Post
Nice looking rims... Lets see a pic of the whole car
Here's he's Sig page:

https://www.dodgeintrepid.net/forums/t156102/
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post #11 of 12 (permalink) Old 05-04-2009, 02:18 AM
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its not the fender you have to worry about rubbing, its the coil spring perch. The 18's on my trep clear the perch with less then a finger room to spare.

I believe the tires on my car are 245/45/zr18's, which is stock size for the 300m special.
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post #12 of 12 (permalink) Old 05-04-2009, 10:10 PM Thread Starter
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