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Old 05-17-2001, 02:56 PM   #1
Tats
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Post Acceptable offset. (Did search!!)

Okay...just sat for an hour or so rooting through old posts and damnit, I want a definate answer!

Okay.....no brainer says that regardless of whether the rim is 16, 17, 18 inchs the proper offset is +53 for a 7" wide rim and +48 for a 7.5" wide rim.

My question is how much leeway do we have either way. For example; I found this sweet set of wheels I want. The bolt patter will fit and it is 17x7.5 with and offset of +45. Okay, to me 3mm is tiny. Will this make a big difference? I know rubbing is also caused by different brands of tires too. (But lets forget about that for now.)

Also..what is rolling your fenders?

Tats.
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Old 05-17-2001, 03:47 PM   #2
RS2001
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I'm no expert, but that sounds like it's gonna rub pretty bad, unless you roll your fenders.
Rolling fenders = bending the inside lip of the fender so that it's more of a "U" shape and not an "L" (if you're not sure what I'm talking about, stick your finger along the lip of your fender, you'll feel it). This stops the fender from chewing up the tire and gives you a couple extra mm's to work with. Some people just cut the fender instead of bending it. Either way, if it's not done carefully, your paint can crack and chip off.
Someone else can probably explain this better, but I hope you get the idea.
Good luck!
-DAN

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Old 05-17-2001, 08:18 PM   #3
Julian
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You have to take the tires into account. That's what rubs! What size/brand of tire, what's the width? 45+ is really discouraged. I'd only go with that if you can test fit them BEFORE you pay. If you can do that, go for it. If you can't, and especially if you can't return them once tires have been mounted....

Julian
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Old 05-17-2001, 08:26 PM   #4
subymamma
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Don't try it! I had some Enkei's that were 40+ as I came to find out and what a pain in the ever livin butt that was! Every millimeter is as good as a mile!!
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Old 05-17-2001, 10:17 PM   #5
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I have a WRX and have 17x7 with a 48mm offset, no problem. Lots of these people are crazy and don't know. I would agree that 40 is to low, but 45 should be fine. Let me know if I can help you access some wheels fairly inexpensive. www.vividwireless.com
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Old 05-17-2001, 10:41 PM   #6
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I'm trying figure out what offset is needed for a 7.5"x17" rim with a 225/45/17 tire on it. AVS Sports on a WRX wagon...from my A4. I don't get why people are going with a 215/45/17, as it has a much smaller circumfrence than the stock 205/55/16. Their odometers will rack up miles much faster, and the gearing will seem shorter(good for autoX, I guess).

Who's got a 225/45/17 on a 7.5" wide rim?

Thanks,

-Cy
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Old 05-18-2001, 01:08 AM   #7
Concillian
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AFAIK, the reason Subaru suggests the 215 width is that wider tires have a good chance of rubbing the fenders on previous models (which had tighter fenders).

It's the standard 17" tire size for Subarus.

No guarantees, but my guess.
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Old 05-18-2001, 08:10 AM   #8
goose
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some food for thought: I recently slapped on some 16" VW Golf steel rims to put on my car to use while I was getting my rims powdercoated, and they fit fine, I'm not positive of the exact offset of the steelies, but VW rims are 39mm aren't they?

Didn't have any rubbing problems or squirrely steering at speed- even did a couple of tests near my work, took a couple of hard turns with them just to test too-
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Old 05-18-2001, 08:36 AM   #9
Tats
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Damn....why does every thing have to be too difficult? I don't want to blow the money on these wheels if they will rub. It's only 3mm but I guess that may be enough. Too many conflicting opinions. Of course the guy selling them says they'll fit, he wants the sale.

Tats.
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Old 05-18-2001, 02:08 PM   #10
megatron
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From what I've heard, the actual proper offset for a 17.7.5 rim is 50mm not 48mm. So stock 16x6.5 = 55mm offset, 17x7 = 53mm, and 17x7.5 = 50mm. Not 48. The SSR Competitions (17x7.5) are going to be available in a fitment made precisely for Subaru and it will have a 50mm offset, so this further suggests this. I'm not saying a certain offset will or will not fit, I'm just trying to clear up the actual preferred offsets.

Also, 215/45/17 is not that much of a difference from stock: less than 1%. So you won't be 'racking up miles much faster' and I doubt they will seem much shorter.
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Old 05-18-2001, 04:54 PM   #11
Tats
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Yeah 215/45/17 is my choice for tire size. I just dont want to spend too much for rims. Oh we'll I guess I'm gonna have to go with the superlegs I guess. Any hints on decent looking wheels in the smae price range?

Tats.
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