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Old 11-14-2011, 02:43 PM   #1
JasonC
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Question Will 245 45 17 fit on stock 2011 WRX wheel?

Will 245 45 17 fit on stock 2011 WRX wheel without rubbing?

I ran over a nail and have to replace 2 or 4 of my tires - stock size is 235 45 17......I was thinking of replacing 4 of them and going to a slightly wider 245 45 17.

Does anyone know if this will fit without rubbing issues?

I looked and there seems to be plenty of room to fit.....searched here and google and only found 1 person who said it worked with no rub. Any help appreciated!!
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Old 11-14-2011, 03:07 PM   #2
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245/40, not 245/45.
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Old 11-14-2011, 03:09 PM   #3
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Dang.....trying to stick with the 45 series.....hate the harshness of the 40 series. Anyone else have info?
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Old 11-14-2011, 03:17 PM   #4
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thats missinformation..... i run 245-45-17 on a 17x8 drag racing wheel with nitto nt01 race tires.... 47mm offset.... and its perfect fit. OE 2011wrx is 17x8 wheel.... go for it.

got a pic at home and post later
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Old 11-14-2011, 03:22 PM   #5
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Quote:
Originally Posted by Robin2 View Post
thats missinformation..... i run 245-45-17 on a 17x8 drag racing wheel with nitto nt01 race tires.... 47mm offset.... and its perfect fit. OE 2011wrx is 17x8 wheel.... go for it.

got a pic at home and post later
theres no "mis information". i never said it wouldn't fit, just suggested an alternative to what OP is looking at. OP is also not in the same situation as you.


Quote:
Originally Posted by JasonC View Post
Dang.....trying to stick with the 45 series.....hate the harshness of the 40 series. Anyone else have info?
The middle number is a percentage. the 245/40 is only about 5mm shorter than the 235/45 - so the sidewall is roughly the same amount of sidewall from a "comfort" aspect.

This will also slightly shorten the 5 speed gearing, which will lead to a more responsive feel of the car.

Theres nothing wrong with a 245/45, but its a bit tall and will make the car feel slow.

Last edited by sc00by4life; 11-14-2011 at 03:28 PM.
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Old 11-14-2011, 03:26 PM   #6
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llllllllll

Last edited by Robin2; 11-14-2011 at 03:56 PM.
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Old 11-14-2011, 03:29 PM   #7
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Old 11-14-2011, 03:29 PM   #8
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^^ this doesn't help the OP other than "it fits".

People do all sorts of retarded things in autox like run 275's on 8" wheels.
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Old 11-14-2011, 03:36 PM   #9
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Ya, sorry for confusion - basically if I buy 2 tires then I will have to stick with 235 45 17.

If I buy 4 new tires I would like to get 245 45 17 if possible, but I do not want any rubbing issues at all, car is on stock springs. I don't mind a taller beefier look, after all it is an all wheel drive car.

I know its a stock 8" wide rim, I am petty sure its +53 offset, which may come into play. I have to do something, tire loses air every 2 days lol.

Thanks for any replies!!
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Old 11-14-2011, 03:56 PM   #10
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i didnt see the i need to replace 2 tires.... part...... so yes, stick with 235-45-17 or change all 4 with 245-45-17 or whatever.... or else enjoy cooking your diffs....
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Old 11-14-2011, 04:05 PM   #11
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Quote:
Originally Posted by JasonC View Post
Ya, sorry for confusion - basically if I buy 2 tires then I will have to stick with 235 45 17.

If I buy 4 new tires I would like to get 245 45 17 if possible, but I do not want any rubbing issues at all, car is on stock springs. I don't mind a taller beefier look, after all it is an all wheel drive car.

I know its a stock 8" wide rim, I am petty sure its +53 offset, which may come into play. I have to do something, tire loses air every 2 days lol.

Thanks for any replies!!
I don't think you understood the 40/45 sidewall issue though.

You think a 40 series is generally shorter than a 45 series. That is only true for a given width. Again, it's a %, not a height. You'll have a VERY similar sidewall height to your 235 45s with 245 40s, and a slight gearing advantage.

IMHO, can't see a good reason to go with the taller 245 45. Less responsive, taller gearing...

What's the benefit?
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Old 11-14-2011, 04:20 PM   #12
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I dislike 40 series tires, from my experience they are harsh riding and wear faster than a 45 series tire.

I was trying to get a wider tire with a slightly wider sidewall, without going to a 40 series tire. I see what you are saying though about them being close to the same height as I have now....I'll look into it.

Anyone interested in 3 good stock tires with 9k miles on them???
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Old 11-14-2011, 04:26 PM   #13
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Do a 245/40 if you plan on doing this and change all 4. DO NOT ONLY CHANGE 2 TIRES ON AWD UNLESS THEY ARE ALMOST NEW. Again 40 is a percent. a 40 is 2.5 percent smaller and a 45 is 1.2 percent taller than what you have. You would gain a bit of acceleration and driveline shock would be eased a bit, but you do lose a bit of fuel economy. Its not 2.5 percent less though since your car will accelerate easier, but will hold higher rpms at speed.
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Old 11-14-2011, 04:29 PM   #14
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Quote:
Originally Posted by JasonC View Post
I dislike 40 series tires, from my experience they are harsh riding and wear faster than a 45 series tire.
I think you're a bit lost on on the concept. 40 "series" and 45"series" are not consistent sized sidewalls. And there are other factors involved in your complaints.
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Old 11-14-2011, 04:30 PM   #15
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Quote:
Originally Posted by JasonC View Post
I dislike 40 series tires, from my experience they are harsh riding and wear faster than a 45 series tire.
I think my 40 series BFG KDWs ride nicer that my ****ty 55 series all season. Firmer, but they aren't harsh by any means. a 245/40/17 still has plenty of sidewall. Think of all the guys running same diameter tires on an 18. Now that is where it gets harsh.
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Old 11-14-2011, 04:39 PM   #16
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Right on, so you all think a 245 40 17 would be the best tire to replace a 235 45 17......or should I just stick with stock?

Sorry I do not know a ton about tires, just that I have one that is going flat every 2 days.
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Old 11-14-2011, 08:49 PM   #17
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Unless there's a reason for you to want to go with a wider tire, stick with the 235/45/17. The money saved can go towards a better tire. If you really want to go with the 245, go with 245/45/17. It is closer to the overall stock diameter than 245/40 is.
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Old 11-14-2011, 09:34 PM   #18
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Quote:
Originally Posted by JasonC View Post
I dislike 40 series tires, from my experience they are harsh riding and wear faster than a 45 series tire.

I was trying to get a wider tire with a slightly wider sidewall, without going to a 40 series tire. I see what you are saying though about them being close to the same height as I have now....I'll look into it.

Anyone interested in 3 good stock tires with 9k miles on them???
you really dont know much about tires

or what all those pesky numbers really mean

...yeah
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Old 11-15-2011, 03:15 AM   #19
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Quote:
Originally Posted by Uncle Scotty

you really dont know much about tires

or what all those pesky numbers really mean

...yeah
I've searched all over and know enough to know it's better to ask on here than to be the one to try it and have them rub or not work. I have a flat and need to buy 2 or 4 tires very soon.
I want a wider look, without running spacers - and I like the comfort of a 45 sidewall. It's not that hard to understand is it?
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Old 11-15-2011, 04:52 AM   #20
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what you aren't understanding, is that the comfort you experience is due to the height of the sidewall, not the number. the 245/40 is very close in diameter (and sidewall height) as the stock 235/45 meaning youll experience the same "comfort" AND the benefit of a wider section width.
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Old 11-15-2011, 09:34 AM   #21
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I got you, maybe I should have said insurance of a taller sidewall. I'll probably stick to stock 235, but still no answer if a 245 45 17 will fit without rubbing.
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Old 11-15-2011, 10:46 AM   #22
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Why does it matter anymore after what you've been told?
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Old 11-15-2011, 11:13 AM   #23
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Quote:
Originally Posted by Byzantium View Post
Why does it matter anymore after what you've been told?
Because if it has very little effect on the car, I would like a wider taller tire.

I'm just going to replace 2 and stay stock, thanks for the posts and insight.
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Old 11-15-2011, 11:16 AM   #24
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So go with a wider tire. 245/40/17. As you've been told a half dozen times...

If you have 9k miles on them you are probably over the allowable tread wear difference anyways and will need to get 4 new tires regardless.
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Old 11-15-2011, 12:02 PM   #25
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245/45-17 does fit a 2011 WRX with no problem ...
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