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The Tire Rack's Tire & Wheel Forum
Use this forum to discuss anything in relation to wheels to tires to offsets.
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Old 12-02-2015, 11:28 AM   #1
trizzuth
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Style 71 tire size suggestion

Hi Tire pro's, curious if someone can suggest the proper tire size for these wheels I may purchase soon?

They are OE style 71 wheels, and are 17" in diameter by 8.5" wide.

Offset is 41mm.

Don't want any stretch, just properly fitting tires for these OE wheels.

I've seen some recommendations about using a 245/40/17 on there, but am wondering if that is too wider for the front. Widest tire I ever had on the front was a 225/40/18 with no issues. Pretty aggressive offset to, 20mm with my summer wheels.

Thanks for any suggestions!
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Old 12-02-2015, 11:46 AM   #2
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sup idiot

If you want to run a square setup, I would do 235's all around if you are concerned with the fronts... which, I would be. I wouldn't want to go wider than 235 up front, however based on the wheel widths, it sounds like you are running 4 rears as they are 8.5 and not 8.0, no?


edit: FYI, i am running 225's all around for winter, and that is both on 8.0F and 8.5R... and they look find. 235's would be perfect for 8.5 wide rims
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Old 12-02-2015, 12:03 PM   #3
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sup BCH!

I was hoping you'd jump in here cause these are your winters.

This is a square set, all rears, 17 x 8.5 all around. So I need something wider than a 225 up front, but 225/40/18 is the widest I've ever run up front.

So you're saying 235/45/17 all around?
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Old 12-02-2015, 02:01 PM   #4
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I see no reason not to run 225/40-17. You have the advantage of no speedo issues.
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Old 12-02-2015, 02:18 PM   #5
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I see no reason not to run 225/40-17. You have the advantage of no speedo issues.
I def do not want speedo issues, but 225 seems a tad skinny for 8.5's?

Would like a bit wider over a bit skinnier, but def want all corners to be the same. I don't really think it would be a huge difference between 225 and 235 or 245.
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Old 12-02-2015, 03:17 PM   #6
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also since the 40 is the amount of tire between wheel and tire edge, seems like I should have no speedo issues running 245/40's or 225/40's. 235/45 may give me a slight speedo issue, correct?
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Old 12-02-2015, 06:19 PM   #7
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Originally Posted by trizzuth View Post
I def do not want speedo issues, but 225 seems a tad skinny for 8.5's?

Would like a bit wider over a bit skinnier, but def want all corners to be the same. I don't really think it would be a huge difference between 225 and 235 or 245.
First of all, I had an error in my post. Should have read 225/45-17. Sorry.

Quick calculations tells me that 235/45-17 would give you a 1.4% error. At freeway speeds that is probably not a big deal. It's essentially 1 mph at 70 mph.

Go for it if that doesn't bother you. I'm not being passive aggressive with that statement either - I mean it. You actually could have speedo error going from one brand of 225/45-17 to another just because of the variations by brand. So, the 1.5% could be something somewhat less or something somewhat more, but still pretty negligible.
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Old 12-03-2015, 07:46 AM   #8
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First of all, I had an error in my post. Should have read 225/45-17. Sorry.

Quick calculations tells me that 235/45-17 would give you a 1.4% error. At freeway speeds that is probably not a big deal. It's essentially 1 mph at 70 mph.

Go for it if that doesn't bother you. I'm not being passive aggressive with that statement either - I mean it. You actually could have speedo error going from one brand of 225/45-17 to another just because of the variations by brand. So, the 1.5% could be something somewhat less or something somewhat more, but still pretty negligible.
Interesting, this is very helpful, I appreciate your advice! Spoke to the seller last night and he also recommended 225/45/17 so that is most likely what I'd be going with. I want my BMW to turn back into a BMW, enough of this wheel wobble crap!
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Old 12-03-2015, 08:42 AM   #9
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Here's what makes my heart purr...... just a thought that could potentially become a reality one day:

17" style 71's custom rebarreled to 19" with a step lip. GOD DAMN.

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Old 12-03-2015, 12:38 PM   #10
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Damn, those are beautiful!
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Old 12-03-2015, 03:40 PM   #11
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Oh lawd. Makes me wish I didn't sell mine.
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Old 12-03-2015, 03:59 PM   #12
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I think i am going to get mine "re-barreled" after this season.... I want to keep the 18's since they will still be for winter but I want at least a different offset.... 10mm up front and maybe 20mm difference in the back.
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Old 12-03-2015, 04:13 PM   #13
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I think i am going to get mine "re-barreled" after this season.... I want to keep the 18's since they will still be for winter but I want at least a different offset.... 10mm up front and maybe 20mm difference in the back.
Style 71s are 2 piece wheels, so in order to rebarrel this inner and outer barrels, you will have to get them machined (VR Wheels does this). I bet that's what the owner of the wheels above did, since they were rebarreled to 19s.
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Old 12-03-2015, 04:21 PM   #14
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Style 71s are 2 piece wheels, so in order to rebarrel this inner and outer barrels, you will have to get them machined (VR Wheels does this). I bet that's what the owner of the wheels above did, since they were rebarreled to 19s.
I know they are 2 piece. I was toying with the idea of taking them apart and polishing the piss out of the barrels, but, the oxidation of the aluminum is just bound to happen again, so I've read.

I have been told before that there are some common "barrels" used with 2 piece rims, so I would potentially be able to purchase just the barrels and swap the spoke part of the rim like a plug and play. Haven't done much research into that, but I wouldn't mind looking into that more.

When you say I have to get them machined.... are you talking about essentially getting a new barrel? I was already under that impression. I need to see my options and see what it will cost as well. I am pretty sure there is a company up in MA that will re-finish the rims for about $175 a rim, might consider that as well, but I'd much rather consider getting new barrels if I'm in a position to spend $700 or so.
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Old 12-03-2015, 05:59 PM   #15
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Originally Posted by JJR4884 View Post
I know they are 2 piece. I was toying with the idea of taking them apart and polishing the piss out of the barrels, but, the oxidation of the aluminum is just bound to happen again, so I've read.

I have been told before that there are some common "barrels" used with 2 piece rims, so I would potentially be able to purchase just the barrels and swap the spoke part of the rim like a plug and play. Haven't done much research into that, but I wouldn't mind looking into that more.

When you say I have to get them machined.... are you talking about essentially getting a new barrel? I was already under that impression. I need to see my options and see what it will cost as well. I am pretty sure there is a company up in MA that will re-finish the rims for about $175 a rim, might consider that as well, but I'd much rather consider getting new barrels if I'm in a position to spend $700 or so.
The inner barrel and face are one piece, so if you wanted to change out the width of the inner barrel, you would have to have it machined off on a lathe and converted to a true 3 piece wheel. Or, you could just swap out the outer barrel for something wider, which will lower the offset and add overall width.
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Old 12-03-2015, 08:36 PM   #16
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I use Hankook Ventus 225/40R18's square on my car. Hope this helps.

Last edited by CJin2552; 12-04-2015 at 01:33 AM.
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Old 12-04-2015, 09:44 AM   #17
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Originally Posted by Flop View Post
The inner barrel and face are one piece, so if you wanted to change out the width of the inner barrel, you would have to have it machined off on a lathe and converted to a true 3 piece wheel. Or, you could just swap out the outer barrel for something wider, which will lower the offset and add overall width.
Wait, what? I thought if i unbolted everything, I would have the 5 spoke wheel face detached, and the entire barrel

http://forum.e46fanatics.com/showthread.php?t=990658
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Old 12-04-2015, 11:39 AM   #18
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Wait, what? I thought if i unbolted everything, I would have the 5 spoke wheel face detached, and the entire barrel

http://forum.e46fanatics.com/showthread.php?t=990658
I stand corrected! Sorry for spreading wrong information. For some reason I was thinking they were 2 pieces, with the outter barrel being the "replaceable" component.

Having said that, I'm still not sure if the faces will bolt right up to standard 3-piece barrels. Maybe reach out to VR Wheels. Those guys do this all day everyday.

Now I really wish I kept my Style 71s!!!
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Old 12-04-2015, 11:41 AM   #19
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I emailed them to see if they have a solid barrel that would be essentially plug and play with these rims... we'll see what they say
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Old 12-04-2015, 11:55 AM   #20
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I emailed them to see if they have a solid barrel that would be essentially plug and play with these rims... we'll see what they say
Curious to hear what they say. I might try this one day. I think building a set to 18x9 +0 for a square setup would be perfect.
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