Rim's Offset

Hi guys..i just got a noob question about the meaning of the offset of a rim.
We always see some description about a wheel such as 18 x 8.0J OFFSET +55, what is the meaning of the 8.0J and the offset +55? i got some pictures here and they should be in different offset size and that 8.0J thingy.
I could pretty sure that those rims are in 18 inches, but is the S13 in 10.0J and the DC5 in 8.0J (Approx) and why should we care about the offset size?
if i want to fit brembo into my car, what offset or what J should i get?
Thx :eek:

http://i186.photobucket.com/albums/x...rkxd9180sx.jpg

http://i186.photobucket.com/albums/x...d9hondadc5.jpg

18x8.0J +55
18 -> diameter of the rims
8.0J -> width of the rims
+55 -> offset, lower number means it sits more to the guard (outside).

different car has different size. most RWD (ex: s13) have lower offset and wider rims compared to FWD (ex: integra).
you CANT fit wheels with incorrect width and offset.

when looking for new rims, try to get the size to be as close as to the stock.

http://wheelstyleuk.alloysuk.com/ima...ary/offset.jpg


Think of it like this:

it would be +35, so to go to +40 the inner edge of the rim/tyre will be 5mm closer to the suspension strut, if they are the same width wheels

so the wheels wont fit the gaurds as well, and you will have less clearance between tyre and strut, which may cause rubbing

but if there is heaps of clearance between them it should go on fine.
just turn the fronts full lock and see if you can see the top of the tyre and put your fingers between that and the shock, check the rears too...


You drive an 06 Honda Civic yes? Offset is about +50 on all 4 wheels?

Don't expect any dish. Won't happen unless you go custom and like +70.

Quote:

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Originally Posted by ludecrs

http://wheelstyleuk.alloysuk.com/ima...ary/offset.jpg


Think of it like this:

it would be +35, so to go to +40 the inner edge of the rim/tyre will be 5mm closer to the suspension strut, if they are the same width wheels

so the wheels wont fit the gaurds as well, and you will have less clearance between tyre and strut, which may cause rubbing

but if there is heaps of clearance between them it should go on fine.
just turn the fronts full lock and see if you can see the top of the tyre and put your fingers between that and the shock, check the rears too...


You drive an 06 Honda Civic yes? Offset is about +50 on all 4 wheels?

Don't expect any dish. Won't happen unless you go custom and like +70.

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nah...im diriving the CTR and a OEM offset of +55, so if i wanna fit any brembo capiler, what offset do i need? with a different offset, do i have ta buy a new set of tyre?

Why have you got two threads running???
http://www.ozhonda.com/forum/showthread.php?t=87170

:eek:

-_-

usually, i refrain from flaming nubs

but....cmon man

u got 2 identical threads going at the same time??

u buy an fn2r, and u want bremboz but u dont know wat offset is??

try doing some research, and learn, cars arent simple, u cant just pick things up instantly

and u should have just left the first thread in the nub forum, but to open a nub thread in the technical section......................

Quote:

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Originally Posted by GupZ

nah...im diriving the CTR and a OEM offset of +55, so if i wanna fit any brembo capiler, what offset do i need? with a different offset, do i have ta buy a new set of tyre?

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you could answer all these questions yourself

you're just too lazy

Quote:

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Originally Posted by Bludger

you're just too lazy

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Oh, the irony! :eek:

:p

Quote:

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Originally Posted by Feverpitched

Oh, the irony! :eek:

:p

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LOL

Compare the width and offset of your stock wheels with the figures on the desired rims and figure out the deviance from the hub.

For example, let's pretend your stock wheels are 6" wide and 60 offset and the new wheels will be 8" wide 55 offset: your inner clearance will be 20mm less. You would need 8" wide rims with an offset of 35mm for the inner clearance to remain the same, but then your new wheels would be sticking out out 50mm further than stock. So measure how much room you have to play with on either side of the stock wheels and then crunch some numbers.

Brembos? Well you need to know what their dimensions are. If they are taller than stock, then the rim diameter may need to be increased; if they are deeper, than you will need to calculate by how many mm and add that to the positive offset required once you have neatralised the rim width out of the equation.

I bet none of that made any sense to anyone but me :wave: