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Need help on tire size for my wheels

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Old 12-11-04, 08:25 PM
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Need help on tire size for my wheels

I have mazdaspeed wheels at 17X8+38 front and 17X9+38 rear. I'm wondering what you guys would recommend as the best tire size, without rubbing or anything like that.

i was thinking of going with 225/45 front and 275/40 rear

Last edited by saburo; 12-11-04 at 08:28 PM.
Old 12-11-04, 08:34 PM
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Those are aggressive offsets, so there is no guarantee for "no rubbing". Best tire choice up front would be 235/45 17, you could run either 255/40 or 265/40 17 on the rears.
Old 12-11-04, 08:44 PM
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Saburo,

run 225/45/17 F and 255/40/17 R and I will garantee you "no rubbing". In fact you can also run 245/40 in the front with no rubbing either.

David
Old 12-11-04, 08:51 PM
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would there be any problem using a 255/45 in the rear? i can't find a 255/40 in the type of tire i want to use.
Old 12-11-04, 08:51 PM
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Saburo,

Here is a pic of a 245/40 on a 8" 32mm offset rim.

Looks a little "bulgy" compared to the 225/45 I used to run.
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Old 12-11-04, 08:54 PM
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here's an idea of how a 225/45 sits on the same rims.

David
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Old 12-11-04, 09:00 PM
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245/40 on 8" rim.
Attached Thumbnails Need help on tire size for my wheels-ssrfrontdriversm.jpg  

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Old 12-11-04, 09:07 PM
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Originally Posted by saburo
would there be any problem using a 255/45 in the rear? i can't find a 255/40 in the type of tire i want to use.
Little too tall. What tires are you looking at? The 255/40 sizing is quite popular.

David
Old 12-11-04, 09:10 PM
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here's another shot that I found, this time showing how a 255/40 sits on a 17x9 38mm rim.

David
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Old 12-11-04, 11:49 PM
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im looking at dunlop sp sport 9000
Old 12-12-04, 01:45 AM
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Originally Posted by saburo
im looking at dunlop sp sport 9000
They make a 255/40 17 in that tire. You can do better for the same money though. Almost every high performance tire made is available in that size.
Old 12-12-04, 04:43 AM
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what tire would you recommend?
Old 12-12-04, 06:52 PM
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Kumho MX... excellent bang per buck.

Check the thread surrently going on...

David



Originally Posted by saburo
what tire would you recommend?
Old 12-13-04, 07:33 AM
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Originally Posted by Rx7@Rocketship.com
here's an idea of how a 225/45 sits on the same rims.

David
Funny, I think that's me behind you in your attached pic. I believe that was in the "bus stop" at Watkins Glen in '01 or '02.

Mark
Old 12-13-04, 11:50 AM
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not all mfg'ers tires are exactly the same width even though they might be labeled the same, like an azenis 205 is really close to a dunlop 225 !

but like other said, the kumho MX is the "wonder" tire for street performance.
I'd run 235 up front and 275 out back (because there is not a 265 wide 17" mx yet)

if you can tolerate a little wheel well rubbing, maybe a 245 front and 275 rear will be even better for performance.
Old 12-13-04, 06:09 PM
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Mark! That is you in the picture. I have the original picture up on the wall at work. I believe it was shortly after that shot was taken that the instructor had me pull into the pit lane. He thought we were "playing" with each other.

Cheers!


Originally Posted by ArcWelder
Funny, I think that's me behind you in your attached pic. I believe that was in the "bus stop" at Watkins Glen in '01 or '02.

Mark
Old 12-14-04, 04:21 PM
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Sorry for the thread diversion all but...

Yes, I remember. That was definitely a good time. I bought a similiar picture from the photographer, taken at the same location and perspective. I do remember running together with some good laps. I thought it was fun, I didn't know we were considered to be "playing" with each other. :-)

Mark


Originally Posted by Rx7@Rocketship.com
Mark! That is you in the picture. I have the original picture up on the wall at work. I believe it was shortly after that shot was taken that the instructor had me pull into the pit lane. He thought we were "playing" with each other.

Cheers!
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