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Old 11-15-2010, 08:55 PM   #1
AdminX2k10wrx
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Question Quick Noob question w/ offsets

i drive a 2010 wrx stock suspension atm.

"The offset of a wheel is the distance from its hub mounting surface to the centerline of the wheel. The offset can be one of three types.

Zero Offset
The hub mounting surface is even with the centerline of the wheel.

Positive
The hub mounting surface is toward the front or wheel side of the wheel. Positive offset wheels are generally found on front wheel drive cars and newer rear drive cars.

Negative
The hub mounting surface is toward the back or brake side of the wheels centerline. "Deep dish" wheels are typically a negative offset.


I feel like i understand that.. so if i get the lowest offset there will be more of deep dish on the P-45 R2(1st) and more of a concave on the P-45R(2nd), correct? like i said dumb noob question, but i would rather be a noob at the beginning and learn instead not knowing what im looking at

P-45 R2 - http://www.rotawheels.com/wheels.asp?wheelid=70
18 x 9.5 5 x 114.3 +12
18 x 9.5 5 x 114.3 +25
18 x 9.5 5 x 114.3 +35



P-45R - http://www.rotawheels.com/wheels.asp?wheelid=31
18 x 9.5 5 x 114.3 +30
18 x 9.5 5 x 114.3 +48
18 x 9.5 5 x 114.3 +25
18 x 9.5 5 x 114.3 +12
18 x 9.5 5 x 114.3 +35
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Old 11-15-2010, 11:19 PM   #2
Uncle Scotty
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dubs...ya gotsta gets da dubs

dubs or nuthin
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Old 11-15-2010, 11:39 PM   #3
DrDanimalSize
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Lowest offset will have the wheels "stick out" more, but depending on the wheel they won't necessarily have more "lip" or "dish" or "concave", often it will only be noticeable from the inside of the wheel where it mounts to the hub. Without actually looking at the wheels and comparing them with other sizes/offsets you won't know for sure.

And yes, gots ta have dubs!
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Old 11-16-2010, 02:58 AM   #4
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Originally Posted by DrDanimalSize View Post
Lowest offset will have the wheels "stick out" more, but depending on the wheel they won't necessarily have more "lip" or "dish" or "concave", often it will only be noticeable from the inside of the wheel where it mounts to the hub. Without actually looking at the wheels and comparing them with other sizes/offsets you won't know for sure.

And yes, gots ta have dubs!
Lol i cant go with dubs, i get what your saying but let me ask you then, with the 2 wheels that i had posted, if you look at the pics one is a dish and one is a concave, they would be deeper and more concaved,...right?? lol
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Old 11-16-2010, 03:36 AM   #5
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Not necessarily! I know that rota torques don't get more concave as the offsets go lower, they only get more concave as they get wider. Find more pics of the wheels on actual cars if you cant look at them in person.
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Old 11-16-2010, 11:27 AM   #6
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Quote:
Originally Posted by DrDanimalSize View Post
Not necessarily! I know that rota torques don't get more concave as the offsets go lower, they only get more concave as they get wider. Find more pics of the wheels on actual cars if you cant look at them in person.
no, they get concaved as the offsets get lower. It just so happens, that with most wheels (like the torque's for instance), lower offsets happen to be wider wheels.
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Old 11-16-2010, 02:52 PM   #7
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awesome feedback guys ty!

ive found some pics of cars with the rims i want, but the angle of pic is wierd or the specs of the rims arnt there lol

im gonna keep searching tho no worries! ty for anyone's responses still
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Old 11-16-2010, 02:59 PM   #8
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Quote:
Originally Posted by AdminX2k10wrx View Post
awesome feedback guys ty!

ive found some pics of cars with the rims i want, but the angle of pic is wierd or the specs of the rims arnt there lol

im gonna keep searching tho no worries! ty for anyone's responses still
stop with the idea of too big of wheels....because that is THE single biggest mistakes that I see here

ya wanna HATE driving the car...but think yer k00???

put too much wheel and tire on it....that WILL do it
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Old 11-16-2010, 03:54 PM   #9
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Originally Posted by sc00by4life View Post
no, they get concaved as the offsets get lower. It just so happens, that with most wheels (like the torque's for instance), lower offsets happen to be wider wheels.
17x8 and 18x8 rota torques have no concave, regardless of whether you get subaru or vw offsets. The only change to the wheel is on the inside. 17x8.5 look the same as well, only 9 or wider will have the concave look.
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Old 11-16-2010, 04:32 PM   #10
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Originally Posted by DrDanimalSize View Post
17x8 and 18x8 rota torques have no concave, regardless of whether you get subaru or vw offsets. The only change to the wheel is on the inside. 17x8.5 look the same as well, only 9 or wider will have the concave look.
You aren't taking into account the relative offset compared to the width of the wheel. an 8" +30 is different than a 9" +30 (about 13mm different). There isn't an 8.5 in production for the Torques either?

Concave is dependent on both wheel width and offset, however, more on effective offset of the outer position of the wheel than width.
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Old 11-17-2010, 01:42 AM   #11
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EDIT: the 8.5s I saw were 18" wheels.

My point is simply that offset may not change the look of the wheel if it is otherwise the same size.

Last edited by DrDanimalSize; 11-17-2010 at 03:12 AM.
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