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255/40r/17 or 245/45r/17?

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Old Jan 16, 2007, 04:43 PM
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255/40r/17 or 245/45r/17?

Hey im shoping around for tires to fit on the stock evo 8 mr bbs wheel. Im going with falken's rt-615. What size do you think i should go with.....255/40r/17....245/45r/17? Thanks guys, by the way im running the stock MR bilsteins w/ tanabe GF210 springs. So from what i read in the tire faq, neither should rub. But im not 100 percent, every ones $0.02 will help!

Last edited by hamflex; Jan 16, 2007 at 05:05 PM.
Old Jan 16, 2007, 05:10 PM
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http://www.discounttiredirect.com/di...42&rd=17&ar=40

i bought these, but there yet to get to my house yet!

ill let u know how they fit!
Old Jan 16, 2007, 05:57 PM
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255/40r/17

go with 255/40r/17 i got same setup and it is perfect
Old Jan 16, 2007, 06:04 PM
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I've never tried tried 255/40, but I just got the Bridgestone RE960 A/S and it's awesome. Don't you get more comfort with the thicker sidewall (Well that also depends on the stiffness of the sidewall to)? But in general, don't you get a little more comfort with the thicker sidewall?
Old Jan 16, 2007, 06:06 PM
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I have the 615's in 255/40/17 on stock wheels and wouldn't even consider anything else. Great setup for the money. As long as your car isn't lowered they will fit fine (my car is stock).
Old Jan 16, 2007, 10:55 PM
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dsevo do you have any pictures of your car.. i would love to see the 255 setup.. im about to buy tires for my stocks... and im trying to decided should i go with stock size or get a wider setup...
Old Jan 17, 2007, 07:34 AM
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On the stock wheel, the 255/40 RT-615 will provide no additional traction. In fact, even if you use a Toyo RA-1 you'll get nothing because the tire is TOO WIDE FOR THE RIM. Believe it or not, your stock tire was just about the best you'll find.

If you go to a 17x9, the 255/40 will help, but the RT-615 is not as sticky as your OEM tire, so you will still have less traction than you did stock.

definitely skip the 245/45 ... it will look stupid and the extra diameter will hurt your acceleration.
Old Jan 17, 2007, 04:05 PM
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Hmmmm...very true on the look stupid part. Well when i bought my car it was used and right now shes wearing some yokohama avs es100's. So rt-615 are way better. Plus im kinda new to awd and road racing so i want to learn my car with a less sticky tire befor i push the limits of addhesion. I just want to know if the 255/40r/17 will rub? Cause my car is lowered, with the those tanabe springs.
Old Jan 17, 2007, 04:11 PM
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Originally Posted by jbrown
On the stock wheel, the 255/40 RT-615 will provide no additional traction. In fact, even if you use a Toyo RA-1 you'll get nothing because the tire is TOO WIDE FOR THE RIM. Believe it or not, your stock tire was just about the best you'll find.

If you go to a 17x9, the 255/40 will help, but the RT-615 is not as sticky as your OEM tire, so you will still have less traction than you did stock.

definitely skip the 245/45 ... it will look stupid and the extra diameter will hurt your acceleration.
You must know something that John Mueller doesn't, because he reccomends 255's for stock tire replacement, and he's played around with 1 or 2 evos.
Old Jan 17, 2007, 04:12 PM
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Originally Posted by plugsnet
dsevo do you have any pictures of your car.. i would love to see the 255 setup.. im about to buy tires for my stocks... and im trying to decided should i go with stock size or get a wider setup...
I'll take some right now, but I don't know how to post them, so someone will have to help on that. I could also just email them to you.
Old Jan 17, 2007, 04:30 PM
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Hey email them to me at hamflex6@yahoo.com, Or download your photos to your computer. Thats obvious, haha. Then go to photobucket.com, start a free account and upload your photos there. Then every time you want to post a photo or avitar. Its already formated for you, and it tells which format to choose for what. Im sure its not the only way to do it, but thats easy and free!
Old Jan 17, 2007, 04:40 PM
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Alright, I think I did it correctly. The link for the picture is:

http://i142.photobucket.com/albums/r...o/111_0004.jpg

The tires are only around a 1/2 inch wider than stock, so it's not like they're anything extreme. I must say though, they do look meatier in person than in the picture. Also, I think the car deffinitely gets more forward traction because my car won't break the tires loose in first unless I try.
Old Jan 17, 2007, 05:05 PM
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Originally Posted by dsevo
Alright, I think I did it correctly. The link for the picture is:

http://i142.photobucket.com/albums/r...o/111_0004.jpg

The tires are only around a 1/2 inch wider than stock, so it's not like they're anything extreme. I must say though, they do look meatier in person than in the picture. Also, I think the car deffinitely gets more forward traction because my car won't break the tires loose in first unless I try.
Hey neighbor. I just moved from oceanside last week and I'm already missing it... especially Palomar Mtn.

Anyway, could you provide a better picture of the tire bulge from the wheel... like a close up side shot of about 30 degrees from the back. You shot from the back doesn't provide much info... it could be a 9" wheel for all we know. Any additional photos would be appreciated mang. I wound up getting another set of 235's because I didn't want a huge bulging tire from the wheel. I couldn't find any good photo's as well.
Old Jan 17, 2007, 05:52 PM
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Im just worried that the budge on the inside, it there is one. Will rub. I dont want to run spacers. So im just looking to see if anyone rocks those tires with no problem!!!
Old Jan 17, 2007, 06:04 PM
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The RT-615s are the best deal for a daily driving tire. I run the 255/40 during the summer and they perform very well, are 100 dollars less than stock per corner, and last longer than the stock tires.
I'm amazed by people who can tell the difference between the rt's and stock as far as traction. I hope people are noticing this at the track because they both have pretty high limits.


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