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Old 11-02-2012, 08:33 AM   #1276
xluben
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Originally Posted by sc00by4life View Post
wrong. its the exact same face. offset has nothing to do with the wheel face.
Whaaa?!?!

Is this a joke?
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Old 11-02-2012, 01:27 PM   #1277
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Quote:
Originally Posted by xluben
Whaaa?!?!

Is this a joke?
Exactly can someone please explain? It would make sense that offset also determines concavity of the face
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Old 11-02-2012, 02:06 PM   #1278
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It can determine the concavity of the face if the depth is great enough and the mfg wants to have several different molds/tooling paths. However depending on the company there will be 2-3 typical faces for concavity and you machine the backside of the hub to set your final offset. Therefore, depending on the wheel type and desired offset the face may not change.
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Old 11-02-2012, 03:32 PM   #1279
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Quote:
Originally Posted by johnmkv

Exactly can someone please explain? It would make sense that offset also determines concavity of the face
Manufacturers typically have several face design, but it does not mean that they are a product of offset.

Hub depth Is what effects offset, but doesn't effect the wheel face as the hub depth can be as thick or thin as the manufacturer specifies.

An easy example to think of is the 18x9.5 +40 nt03 and the 18x9.5 +27 nt03. Exact same face, but one has a shallower hub for a higher offset. The +27 also clears brembos simply because the hub is so deep, and the +40 doesn't.

17x8 +48 and 17x8 +35 rpf's also have the same face.

18x10 +38 and 18x10 +18 xd9's have the same face and same amount of lip. Again, the lower offset clears brembos simply because of the hub depth.

You cannot say for certainty that offset determines wheel face or brake clearance. It is all based on the specific wheel design. Face design is typically based on wheel width, though that isn't always the case either.
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Old 11-02-2012, 04:49 PM   #1280
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sub'd for ownage.
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Old 11-03-2012, 12:19 AM   #1281
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I'm new around here (and from australia) but this thread really helped me to figure out what tyres and size rota's i was going to buy.

Thought I would give back by posting how mine is sitting at the moment and my experiences, since it seems from reading every page of this thread - there are lots of people that were in my shoes and wanted the same fitment i wanted, without the hassle.





MY11 WRX
Rota Grids
18"
9.5" Wide
+38 Offset

255/35/18 Marshals (By Kuhmo)

Rolled Rear Guards
STD Coilovers.

When i slapped these on, my rear was fine.. to be honest i think i could go lower another 1-2cm in the rear but i like having passengers. The front was the only issue, to fix that i've put -2 degrees of camber on the coilovers and i've had no issues since unless i fly around a corner or hard turn into a bump.. then it scrapes a little. My biggest issue is with that sort of camber on front, in the wet or around a corner if i put my foot into it - it torque steers a little.. So i'm gonna drop it back to -1 degree and see if that helps.. if not i'll look for ways to roll the front guards.

Either way no huge problems, drives like a charm and fits really snug. In my opinion don't go 255's unless you have coilovers or a kit to adjust camber, or at the very least roll the front guards also.
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Old 11-03-2012, 07:46 PM   #1282
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Originally Posted by Mach V Dan View Post
Because of the low +35 offset, I think you'll have to roll with anything larger than 235/45R17, and you MIGHT have to roll even with the 235 once the car is lower. For an easier time fitting larger tires, get a higher offset wheel. (+42 would be better, hint, hint.)

--Dan
Mach V
FastWRX.com

Hi Dan,

Just wanted to let you know that I got around to putting some rather mean Rota Grid 17x9s on the car, and it turned out rather well really wide stance and much more flush than I expected! Car drives really well, and I took the opportunity to finally wring it out at an AutoX event. Thanks for all your help and the detailed information!

I'm currently on the OEM Dunlop 235/45/17 tires, but in the future I plan on going to maybe 255s, accompanied with rolled rear fenders and lowered suspension.



FYI for newbies putting on aftermarket rims, here's the list of stuff I bought to put the new rims on - everything came together effortlessly:

* A set of ROTA Grid 17x9 5x100 42mm-offset 73.1mm bore wheels
* A set of aluminum 56mm-73mm hub rings to go with the wheels
* TPMS sensors w/ valve stems, and new long lug nuts that fit the wheels
* For tires, I used my OEM Dunlop 235/45/17s

Last edited by vikramaditya1986; 11-03-2012 at 07:55 PM.
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Old 11-03-2012, 07:58 PM   #1283
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Edit, the picture came up now. Looks good. Have anymore pictures from the side?

Last edited by PearlRex11; 11-03-2012 at 08:10 PM.
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Old 11-04-2012, 07:51 PM   #1284
b0yt0y
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Hi guys! I recently ordered a 2013 wrx and It willbe delivered by December. I have a few question about the wheel and tire fitting on each other.

Will a 235/45 R17 fit on a 17x9 or 17x8.5 wheel?
The reason I asked this is... I bought winter tires since the car will arrive in winter and I am planning to buy wheels for the stock tires that i can use for the summer.

Thanks in advance

------------
Oh LOL! I just found the answer to my question... Its the post before me

So I guess the question now is, Is there a difference or drawback in the performance of the car?

Thanks

Last edited by b0yt0y; 11-04-2012 at 07:59 PM.
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Old 11-04-2012, 11:39 PM   #1285
vikramaditya1986
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Here are some quick-pics taken on my cell phone right before I swapped the tires/wheels out for my winter set (OEM 17s with OEM-size Conti DWSs). As I said, they turned out pretty flush (and I wasn't even trying!). The challenge will be to put 255s on these wheels and not rub the fenders - I guess I'll have to roll the rears at least.





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Old 11-04-2012, 11:45 PM   #1286
vikramaditya1986
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Quote:
Originally Posted by b0yt0y View Post
Hi guys! I recently ordered a 2013 wrx and It willbe delivered by December. I have a few question about the wheel and tire fitting on each other.

Will a 235/45 R17 fit on a 17x9 or 17x8.5 wheel?
The reason I asked this is... I bought winter tires since the car will arrive in winter and I am planning to buy wheels for the stock tires that i can use for the summer.

Thanks in advance

------------
Oh LOL! I just found the answer to my question... Its the post before me

So I guess the question now is, Is there a difference or drawback in the performance of the car?

Thanks
AFAIK the OEM Dunlop 235s will stretch up to a 17x9 at most (as I did with mine). Yea, it looks like you're aiming for a setup similar to mine - OEM wheels with winter tires, and aftermarket wide wheels with OEM Dunlop tires. Please scan this thread thoroughly; in particular for my questions, and Mach V Dan's answers to them - they contain detailed information regarding offsets, and rim and tire widths.

Thus far, car feels great - I even took it AutoXing (granted I'm a novice, but it still felt pretty good). For steering feel among other things, it's important to keep the offset to a reasonable number: stock is +53, my Rotas are +42 and experts seem to recommend +30 or more typically. Hope this helps.

Last edited by vikramaditya1986; 11-04-2012 at 11:51 PM.
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Old 11-06-2012, 09:22 PM   #1287
Mach V Dan
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Quote:
Originally Posted by XERO287 View Post
I also got new rear tires as it was bugging me:
Um, what? What size did you go from and to? Why was it bugging you?

Quote:
Originally Posted by sc00by4life View Post
Manufacturers typically have several face design, but it does not mean that they are a product of offset.

Hub depth Is what effects offset, but doesn't effect the wheel face as the hub depth can be as thick or thin as the manufacturer specifies.

An easy example to think of is the 18x9.5 +40 nt03 and the 18x9.5 +27 nt03. Exact same face, but one has a shallower hub for a higher offset. The +27 also clears brembos simply because the hub is so deep, and the +40 doesn't.

17x8 +48 and 17x8 +35 rpf's also have the same face.

18x10 +38 and 18x10 +18 xd9's have the same face and same amount of lip. Again, the lower offset clears brembos simply because of the hub depth.

You cannot say for certainty that offset determines wheel face or brake clearance. It is all based on the specific wheel design. Face design is typically based on wheel width, though that isn't always the case either.
Good post.

Quote:
Originally Posted by chevZ View Post
I'm new around here (and from australia) but this thread really helped me to figure out what tyres and size rota's i was going to buy.

Thought I would give back by posting how mine is sitting at the moment and my experiences, since it seems from reading every page of this thread - there are lots of people that were in my shoes and wanted the same fitment i wanted, without the hassle...
Another good post. Lots of good specific info. Thanks.

Quote:
Originally Posted by vikramaditya1986 View Post
Hi Dan,

Just wanted to let you know that I got around to putting some rather mean Rota Grid 17x9s on the car...Thanks for all your help and the detailed information!


Quote:
FYI for newbies putting on aftermarket rims, here's the list of stuff I bought to put the new rims on - everything came together effortlessly:

* A set of ROTA Grid 17x9 5x100 42mm-offset 73.1mm bore wheels
* A set of aluminum 56mm-73mm hub rings to go with the wheels
* TPMS sensors w/ valve stems, and new long lug nuts that fit the wheels
* For tires, I used my OEM Dunlop 235/45/17s
Good specifics here, too. Sometimes people ask me which kind of hub ring (aluminum or plastic) is superior. Aluminum is strong and doesn't melt, but sometimes bimetal chemical reactions can make the metal rings very hard to remove from the hub -- we've had to chisel them off at times. Plastic/composite rings can sometimes melt, or just break down, under very high heat (like the heat generated from road course driving), but are usually easy to remove. If it's not going to be used for road racing, either type should be fine.

--Dan
Mach V
FastWRX.com
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Old 11-06-2012, 09:40 PM   #1288
drolon1
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I was wondering how an 18x9.75 with a +20 offset would fit with 265/35/R18 tires. would i need a fender roll on stock height? when i lower it?
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Old 11-06-2012, 09:52 PM   #1289
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Quote:
Originally Posted by drolon1
I was wondering how an 18x9.75 with a +20 offset would fit with 265/35/R18 tires. would i need a fender roll on stock height? when i lower it?
Ill tell you what somebody told me when i asked about this same size rim. It going to look terribly cholo at stock height. That size is really meant for someone with coilovers to be able to properly fit them. With that size, you will rub like crazy and really wont be able roll, pull or camber enough on stock suspension.

I was about to buy a set of rims and tires off a nasioc member that were this size. The guy had them on stock suspension and said he was rubbing extremely bad even with a roll.
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Old 11-06-2012, 10:13 PM   #1290
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Quote:
Originally Posted by drolon1 View Post
I was wondering how an 18x9.75 with a +20 offset would fit with 265/35/R18 tires. would i need a fender roll on stock height? when i lower it?
roll....pull.....you also most likely wont get enough camber without heavily modifying the suspension......

i can tell you haven't even read this thread at all.
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Old 11-07-2012, 10:53 AM   #1291
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After a lot of reading here is what I have and plan to do:

2013 WRX 5-door Limited
Wheels: Miro 111 18x9.5 +40
Tires: 255/35/18
Suspension: Plan on staying stock
Fender mods: I've rolled fenders on 3 of my cars and I'm ok with rolling if I have to, but I don't want to pull.

From what I've read, this fit should work.

My question is for anybody running something similar on stock suspension. Do you think I'll have to roll? If so, does it need to be a completely flat roll or can I get a away with a small roll? I've rolled a few fenders before, and getting them completely flat takes a little more work.

I'm also open to any input on tire sizes, brands, etc...

Thanks!
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Old 11-07-2012, 12:49 PM   #1292
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Quote:
Originally Posted by jesup16 View Post
After a lot of reading here is what I have and plan to do:

2013 WRX 5-door Limited
Wheels: Miro 111 18x9.5 +40
Tires: 255/35/18
Suspension: Plan on staying stock
Fender mods: I've rolled fenders on 3 of my cars and I'm ok with rolling if I have to, but I don't want to pull.

From what I've read, this fit should work.

My question is for anybody running something similar on stock suspension. Do you think I'll have to roll? If so, does it need to be a completely flat roll or can I get a away with a small roll? I've rolled a few fenders before, and getting them completely flat takes a little more work.

I'm also open to any input on tire sizes, brands, etc...

Thanks!
You should be OK depending on the brand of tire you get. You could roll the rear just to be safe.

And when rolling...in my opinion there is only one way to truely roll fenders - flat. Do it once and never think about it again.
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Old 11-07-2012, 01:44 PM   #1293
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I'm thinking about BFGoodrich Comp Sport-2's. The spec's have them with a tread width of 10.2, which is about 1/2 more than most 255's and a little less than most 265's. They are for DD.
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Old 11-07-2012, 02:15 PM   #1294
XERO287
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Quote:
Originally Posted by Mach V Dan View Post
Um, what? What size did you go from and to? Why was it bugging you?

--Dan
Mach V
FastWRX.com
I didn't change the size or type of tire. I simply put on 2 new (of the same) rear tires as the fender rubbed a significant portion out of the sidewall and was causing vibration about 65 mph.

Don't be alarmed good sir. All was done in <25 miles as well so tread depth is even. All 4 tires are still at 265/35/R18.

Thanks for the concern though!
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Old 11-08-2012, 09:06 PM   #1295
texascanuck
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Quote:
Originally Posted by jesup16 View Post
After a lot of reading here is what I have and plan to do:

2013 WRX 5-door Limited
Wheels: Miro 111 18x9.5 +40
Tires: 255/35/18
Suspension: Plan on staying stock
Fender mods: I've rolled fenders on 3 of my cars and I'm ok with rolling if I have to, but I don't want to pull.

I'm also open to any input on tire sizes, brands, etc...

Thanks!
The Toyo Proxes R1R are good value for the money. I think Tire Rack has them for $884/set of 4 in the 255/35-18 size. My pick for a DD.

I also like the Yokohama Advan AD08 tires. But they will be more expensive.
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Old 11-08-2012, 10:10 PM   #1296
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Hello there,

I have a 2012 WRX sedan and I'm a little confused while trying to purchase new rims/tires for the summer. I've read through the sticky threads here for hours and its just confusing with so many opinions.

I'm a daily driver on my WRX and live in Michigan. I just ordered a set of winter tires to fit my stock rims and plan to get 18" rims and new summer tires to have 2 sets, one for summer and one for winter.

My question is, is searching wheels on tirerack that "fit my vehicle" the best way to go for a daily driver not looking to increase performance or roll fenders or fill the wheel gap or lower the car or blah blah? I'm not sure what the specs are on the stock rims other than they're 17". It looks like the largest I see that "fit my vehicle" are 18x8 on tirerack, but so many people on this forum say to go to 18x9 or 18x9.5, I'm not sure what stock width size is. Offset and backspacing I'm not quite sure on either. It just seems to me that what tirerack says "fits my vehicle" are much smaller than what everyone here says to do.

What I'm seeing most of on tirerack is something like:

Size: 18x8
Offset: 45mm
Backspacing: 6.25"
Bolt Pattern: 5-100
Rec. Tire Size: 235/40-18

Any help is really, really appreciated. I've never gotten aftermarket rims for any car and I want to make sure I do it right for the daily driver in me. I also assume I need another TPMS setup for the new set of tires so that one system is on each tire setup? Sorry this is all just way overwhelming and confusing after hours of reading posts. So many opinions and setups.. I just want something close to stock or maybe fill up the wheel well a little bit but don't want to mod anything else. Just new 18" rims! so complicated.
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Old 11-08-2012, 11:16 PM   #1297
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hey guys i need some help. Today i lowered my 2013 sedan on kw v1. I have 18x8.75 35et xxr on 245/40r18 pilot sports. im lowered to where you can see barley see the tire. I am rubbing crazy on the rear with my fenders rolled, also when i turn the wheel to the left i hear this popping noise? I see people running 18x9.5 38 et on 255/35/r18 and dont rub. Can anyone please help me? im not sure if i should get new tires or raise my car higher?
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Old 11-08-2012, 11:24 PM   #1298
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Quote:
Originally Posted by shuubee
hey guys i need some help. Today i lowered my 2013 sedan on kw v1. I have 18x8.75 35et xxr on 245/40r18 pilot sports. im lowered to where you can see barley see the tire. I am rubbing crazy on the rear with my fenders rolled, also when i turn the wheel to the left i hear this popping noise? I see people running 18x9.5 38 et on 255/35/r18 and dont rub. Can anyone please help me? im not sure if i should get new tires or raise my car higher?
You probably don't have enough camber in the rear, which means you'd rear lower control arms.
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Old 11-08-2012, 11:58 PM   #1299
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Originally Posted by sc00by4life View Post
You probably don't have enough camber in the rear, which means you'd rear lower control arms.
i have -3 in the rear. do you know why my front has a popping noise when i turn? is it the tire hitting the plastic?
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Old 11-09-2012, 12:17 AM   #1300
mw1484
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Quote:
Originally Posted by shuubee View Post
i have -3 in the rear. do you know why my front has a popping noise when i turn? is it the tire hitting the plastic?
Probably worth having a friend just look while you're driving/turning the wheel.
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