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Old 06-07-2005, 06:29 AM   #251
wrx plus
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Quote:
Originally Posted by aspera
17x8.5 sounds like the Rota's that Subydude sells. I think those can fit a 255 with rolling. You would either have to run those tires all the way around or find a tire with the same O.D. Sounds like a PITA.

Then you end up with sticky rear tires and...transmission trouble?

What is this car going to be used for?

My wrx is RWD, fronts don't have to match-up . I think I have found some 18 x 9.5 rims for the rear in a 35mm offset I have to figure out how far they'll stick out of the fender now, if it's not too much I can adapt fender flares.
The tranny and rear-end are being addressed now
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Old 06-07-2005, 06:52 PM   #252
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Quote:
Originally Posted by wrx plus
My wrx is RWD
Not a flame, but... why on earth would you convert from AWD to RWD?
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Old 06-07-2005, 07:23 PM   #253
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Alien-If you were closer I'd give you ride in it and you would understand

Back on topic, I have located a set of rims 18 x 9.5 w/ 35mm offset, can anybody tell me if they will clear the struts? And approx how much will protrude from the wheel well? These are for the rear only

Last edited by wrx plus; 06-07-2005 at 07:24 PM. Reason: can't spell
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Old 06-08-2005, 01:47 PM   #254
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Quote:
Originally Posted by wrx plus
Alien-If you were closer I'd give you ride in it and you would understand
I'm fully in love with my AWD with all the rain we've had around here lately (floods, evacuations of towns along the rivers, good times). No pull in puddles on crappy stock tires. My trunk monkey is getting bored, no weight shifting required for the poor little guy

On topic myself... I called Subaru of Canada consumer support to try to get a definitive statement on what the "correct" offset range is for 17" and 18" wheels on the WRX sedan, as well as what they consider to be a tolerable range for tire overall diameter deviation from the stock 25.1" wheel + Potenza combination. They have no numbers or ranges to offer, and advised me to check withthe dealers in the city because they are supposed to have that information... meanwhile, I'd talked to my dealer last week, and they can't get the information out of SoC either.

The parts manager at my dealer figures that a couple of mm from stock is safe, but more than that isn't a good idea (in other words, he wouldn't recommend anything at Tire Rack except maybe the 50ET SSRs). He's trying to get me some information on this for those who want to ensure a correct fit, not just a good-enough fit. I'll post info when I have it.
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Old 06-09-2005, 12:09 AM   #255
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Quote:
Originally Posted by wrx plus
My wrx is RWD, fronts don't have to match-up .
You still have ABS braking, right?
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Old 06-10-2005, 04:15 PM   #256
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Quote:
Originally Posted by aspera
You still have ABS braking, right?
I'm working on getting rid of it I almost have all the parts now.
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Old 06-10-2005, 04:23 PM   #257
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Quote:
Originally Posted by alien
I'm fully in love with my AWD with all the rain we've had around here lately (floods, evacuations of towns along the rivers, good times). No pull in puddles on crappy stock tires. My trunk monkey is getting bored, no weight shifting required for the poor little guy

On topic myself... I called Subaru of Canada consumer support to try to get a definitive statement on what the "correct" offset range is for 17" and 18" wheels on the WRX sedan, as well as what they consider to be a tolerable range for tire overall diameter deviation from the stock 25.1" wheel + Potenza combination. They have no numbers or ranges to offer, and advised me to check withthe dealers in the city because they are supposed to have that information... meanwhile, I'd talked to my dealer last week, and they can't get the information out of SoC either.

The parts manager at my dealer figures that a couple of mm from stock is safe, but more than that isn't a good idea (in other words, he wouldn't recommend anything at Tire Rack except maybe the 50ET SSRs). He's trying to get me some information on this for those who want to ensure a correct fit, not just a good-enough fit. I'll post info when I have it.
LOL! I'm from Ketchikan, Alaska, and if I still lived up there I would still be AWD, I understand completely.
Subaru will only give you the offsets for wheel sizes that they equip on their cars, to do other wise would open them up to law-suits etc.
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Old 06-14-2005, 11:31 PM   #258
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Quote:
Originally Posted by wrx plus
Subaru will only give you the offsets for wheel sizes that they equip on their cars, to do other wise would open them up to law-suits etc.
The situation might be somewhat different in Canada, perhaps because we're far less litigation-happy that in the US

My dealer tells me that they are getting a list of approved wheels, without getting approval spec ranges. The dealer sells Enkei RPM2 and BBS RK wheels, and those are 48ET if I recall correctly.
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Old 06-15-2005, 08:18 PM   #259
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i'm looking to run 17 by 8.5 volks with a 44 offset on my 05 wrx...is anyone else out there running something similar to this or know if it will work...? Thanks ahead of time.
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Old 06-28-2005, 02:18 PM   #260
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I've been looking for wheels, and although I would love to spend $2500 on some Volks, I can't.

So I found these : http://revwheels.com/m14.html

Not super expensive, but the offset is +42 in a 17X7.5 wheel. How bad is that on the wheel bearings? I'm not auto-xing or anything, just some agressive daily driving.

Why these wheels and not (insert your favorite brand here)? Polished Lip. I really want a polished lip, and I can't find it on any of the styles I like.
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Old 06-29-2005, 04:12 AM   #261
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Subaru Stars wheels

tirerack has nice ones and not lots of $$$ ASA AR1 17x7 with +48mm offset but guys over at that web site really cool call them they will tell you everything you need to know good luck

Last edited by colerex; 06-29-2005 at 04:18 AM.
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Old 06-29-2005, 11:56 PM   #262
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so in the end after skimming through no one seem to clearly answer is 17x7 40mm offset ok for the wrx with no wheel bearing issues....
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Old 06-30-2005, 10:39 AM   #263
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Quote:
Originally Posted by o2sys
so in the end after skimming through no one seem to clearly answer is 17x7 40mm offset ok for the wrx with no wheel bearing issues....
40ET is not correct for the WRX. Thats it, plain and simple. Will it fit? Maybe... not correctly, but it will fit. Will it void your warranty if you end up with problems with wheel bearings, struts, etc? I'd bet it will (and it should). Thats 13-15 mm from correct. IMO, you'd be at least slightly insane to go lower than 48ET, and I personally don't want to deviate from stock offset much beyond 51ET.
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Old 06-30-2005, 11:01 AM   #264
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Quote:
Originally Posted by alien
40ET is not correct for the WRX. Thats it, plain and simple. Will it fit? Maybe... not correctly, but it will fit. Will it void your warranty if you end up with problems with wheel bearings, struts, etc? I'd bet it will (and it should). Thats 13-15 mm from correct. IMO, you'd be at least slightly insane to go lower than 48ET, and I personally don't want to deviate from stock offset much beyond 51ET.
Got it...thanks a bunch
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Old 06-30-2005, 06:34 PM   #265
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I, on the other hand, wouldn't worry about a half inch difference in offset on such a narrow wheel that likely has hard tires and isn't raced.

Sure, the 40mm offset has more wheel and tire OUTBOARD of the mounting face than the stock ~53mm offset. But not as much as a wider wheel and tire. The INBOARD has much less tire and wheel to deal with. For both hard left and right turns, neither is going to generate more load on the bearings than wide, sticky tires with the stock offset.
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Old 07-02-2005, 03:03 PM   #266
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Old 07-04-2005, 06:39 AM   #267
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Will Gram Lights 57S bolt pattern = 5 x 114.3 ,size = 17x8.5, offset = +40 cause any wheel bearing or axle problems in the long run for a 2005 STI??
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Old 07-04-2005, 11:32 AM   #268
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It would be really helpful to get some real information out of Subaru. My attempts to get warranty friend offset range info out of Subaru of Canada have met with failure. Whether or not the offset information, impact to wheel bearings, etc is an "internet myth" as MinesFaster puts it, the fact remains that the design of the vehicle is low-mid 50ET, not 40, not 38. That is a fact.

However, that fact does not contradict MinesFaster's experience. His experience is also fact (taking it at face value... no reason we shouldn't). Will using an incorrect offset noticably impact bearing life, etc etc? Maybe, but not according to MF's experience.

How does this impact each individual Subaru owner? Simple: it is a matter of risk. How much risk are you willing to accept for how much gain? Both may be expressed in terms of perceived risk and perceived gain. I perceive no gain in running an offset lower than 48ET (for a minimum 7.5 inch width wheel), which I'm slipping towards as my lowest tolerable option.

Decide what your tolerance for risk is, and chose accordingly.
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Old 07-05-2005, 04:45 PM   #269
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Will the Work Emotion Cr Kai 18x8.5 5x114.3 +43 fit my 05 WRX?

Last edited by SoCal818 WRX; 07-05-2005 at 04:55 PM.
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Old 07-06-2005, 08:43 AM   #270
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Quote:
Originally Posted by SoCal818 WRX
Will the Work Emotion Cr Kai 18x8.5 5x114.3 +43 fit my 05 WRX?
No, it won't fit because you need a 5x100 wheel. You want the 18x7 +48 offset CR KAI (Subaru fitment table).
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Old 07-08-2005, 05:41 PM   #271
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Additional things to keep in mind about offset and subaru. This is more a rubbing issue than anything. If you look at every japanese manufacturer with alloy wheels on the road today, they all come from the factory with 48+ offset or REALLY narrow wheels and in some cases (I.e. Honda Accord) both. Subaru is not the only manufacturer to have high offset from the factory. Honda's dont have very many bearing problems running 35mm offset (I have seen a few but the jury is open as to exact cause).

Even American manufacturers generally supply high offset wheels as factory equipment. There is no reason to believe that they have superior bearing technology. Hubs and CV axles only allow a certain amount of bearing area and still remain cost effective and adequately meet design parameters. To say that it will kill subaru bearings and not lets say a Focus is ridiculous. I will check to see what other vehicles use the FW141 and GRW241 (SFK numbers), and I guarantee that there are others that use them. Furthermore I have no reason to believe that these bearings (I have installed them, actually the other day on an Outback wagon with stock RS wheels and 93,000 miles) are sized smaller than what is required for running lower offset safely.
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Old 07-10-2005, 03:39 PM   #272
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This is my first post, came here looking for offest options and results, however, was wondering if someone could correct the first post in this thread. It makes on sense that the wider you go with the wheels, the smaller the offset you need. Should be the opposite. Should be as you increase your wheel width, the offset needs to increase to prevent it from sticking out too far. Everything I have read so far (even here) indicates that an 8" wide wheel should be 51mm offset, but the chart indicates much lower offset.

Perhaps the chart needs clarification?
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Old 07-10-2005, 07:38 PM   #273
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Since it is your first post (virgin!), then I'll try to be nice.
I think you might be confusing offset with backspacing.
If not, then you might be too focused on fender rubbing.

Ideally (for the bearings and suspension/steering geometry) offset never changes regardless of wheel width. The problem with that is you soon run out of room.

The questions are: WHERE do you run out of room first? By HOW much? Can you live with it? HOW do you correct it? HOW much does that cost? HOW far is it safe to deviate from the stock offset? WHAT happens if you go too far? WHAT part breaks? HOW does it fail? Does just a part need to be changed or does the wheel fly off into a schoolyard?
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Old 07-12-2005, 05:48 PM   #274
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Anybody running a 17.7.5 with a 30 offset on an 04 wrx? If so any problems? I may have a set of gram lights 57c up for my taking at 17x7.5 +30. Any info would be awesome!
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Old 07-26-2005, 12:10 AM   #275
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Talking offset vs disk position.

Most manufacturers have a set standard for the actual disk position.

0 offset usually means right at the center of the wheel width.

But some manufacturers have different disk positions but the hub/lug plate is still at the center therefore creating less or more space for brakes.

and some offsets may be the same but disk position is different.

For example, speed star racing japan will have a size chart along with disk position telling you how deep the dish is. even though the offset maybe +48 but the disk position is either concave or convex giving more or less dish and of course the width plays a huge roll in how miuch deep dish you get.

say 9.5 inch width wheel with a +48 offset will have a large disk. +48 from the center of the wheel compared to 7.5 with +48. to have the same dish as a the 7.5 with +48 the 9.5 may need a +60 or more offset. +60 from the center equals more wheel going inside the wheel well. Sometimes rubbing against the fender isnt the issue but making sure it doesnt rub suspension as well.

A good reference is work wheels japan,
http://www.work-wheels.co.jp/wheels/...2p/mst2p.html#

click on the the download graphic, it'll give you 3 types of dish positions. plus offsets.

im not saying it the same for all manufacturers, but i know ssr or speed star racing wheel and work has disk variation. Just a little information for those who wants to know.

What im saying might not be correct, just how i understand it.
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