Question About Rim Sizes...

[MILLOS]

So there are conflicting recommendations on the forum, some say mid teens for offset is best, others say thirties is best....mmmmm

Rianto, what does the offset do exactly? What is it?

Thanks again!

[rs73]

it's the distance from the centre of the rims' width to the face hub.

the lesser the offset do the more the wheel will stick out of the guards...

I'm just speaking from legality point of view, unless you want to be defected for having an open wheeler car on the road without wheel guards (due to extreme low offset), or you will need to roll your guards a lot to clear the rims and wheels.

My rear has offset +25 and in my opinion it is very close to the edge of the guard already, considering it's 9.5" wide at the back (1.5" wider than std 8")

which means compared to standard +30 offset the new rims would easily stick outwards 5mm due to offset + another 19mm due to width difference = 24mm or almost an inch... still can do lower, perhaps +20 but that means after every drive over a pot hole or so you will need to clean all your rear quarter guards 'cos you'll get lots of mud splash up your car's arse....

[MILLOS]

Great, thank you for that once again.

I certainly don't want the wheels to stick out of the guards, it does not suit this car, plus it's my daily drive and I do not want to attract the attention of the police.

So I think a more conservative offset of mid 20's to 30 should suit. I'm looking at getting 10" wide rims for the back and 9" for the front. I want to go more for the luxury look rather than the racey look. Although I would like it to look a little aggresive at the back.

I love this forum, you can find so much information. The donation that I gave the forum has repaid itself back so many times over!!!

[BLISTC]

millos,

best STANDARD offset imo is 9.5" wide +22 front / 10.5" wide +22 rear. the rims will be FLUSH, not stick out. I have seen alot of exmaples of people who put rims on this car and the offset is all wrong. The same issue with 350Z. These cars have massive guards... FILL THEM! anything higher than a +22 will look shit. Definatley dont go to mid 30's. You will be kicking yourself if you do.

I have done EXTENSIVE research into the offset of rim sizes and what works and what doesnt on V35s. I researched for about 4 months before i decided on buying my rims. I have looked at what alot of other people have done.

anything under a +22 (e.g. in my case +8 front / +18 rear) is getting much more aggressive and you need to run alot of negative camber.

you can get a nice flush look without the bad effects of negative camber with the offset i have recommended. throw a 265 tyre on the front and a 285 tyre on the rear and then you will have a VERY nice looking setup. but REMEMBER you need a 9.5" wide front and 10.5" wide rear, otherwise the offset i just mentioned will be useless. And that goes for everyone else here who has recommended you an offset.

WITHOUT KNOWING THE WIDTH OF THE RIM, TRYING TO DETERMINE THE OFFSET IS USELESS.

[BLISTC]

Hey Eldubb,

I'm looking at exactly the same issue too. So did you buy the 19" at 245/35f and 275/35r?

Also for the guys that know, the offsets that are supposed to best suit the V35 are in the teens, i.e. +15.

The guys at the tyre shop were offering me +30's offset, what is the difference? How will it affect the ride?

In terms of rim, they have Work wheels, which are beautiful, but a little pricey of course.

They also have Taiwanese made wheels, which look great, but a lot heavier and cheaper, what do you guys think?

+15 offset? how wide is the rim? maybe a bit to aggressive for what your after. especially if it is in the region of 9-9.5/10-10.5 which is the width you should be looking at.

+30 offset? again how wide is the rim?

[rs73]

just keep in mind the wider the rims, the more it will stick out of the guards with the same offset, and you need to consider whether the wide rims will scrub the inner suspension component too. just use the rim size calculator here to check the combination that you want whether you will have any issues, and check your existing rims now and see how much clearance you got inwards towards suspension and outwards up to the guard.

http://www.1010tires.com/WheelOffsetCalculator.asp

best to keep the front rims less wider than the rear since the wider the front rims, it might scrape the guard when turning.

but if you don't lower the car it shouldn't be too much issue, otherwise you may shave the tyre edges, potentially making the tyre weaker,

and your guard could be dented from the scrubbing. It happened on my old R33 even on 17x8" at the front, cos it was lowered 1" at the front.

happened during hard sweeping corner on the race track, shaved the tyre and dented the guard lip at the point of tyre contact...

the rear guard is wider so it can accommodate wider wheels at the back, so no worries.

PS: from previous posts... I will keep this link handy too to calculate tyre size http://www.miata.net/garage/tirecalc.html

Armed with these 2 links / calculators, it will answer all your questions...

[BLISTC]

on the rear with my setup, i rolled the rear guards. $50 a side, and it didnt crack the paint. there is no scrubbing whatsoever. when there is passengers in the rear, you should see the clearance. less than 1-2mm from the guard to the rim!

on the front there is again no scrubbing at all. V35s can take a huge different assortment of rims. But it is the tyre choice which will also mean will it scrub? or not?

eg. if i went with a 35 profile instead of a 30 profile on my rims, then yes there would be major clearance and scrubbing issues.

[MILLOS]

Alright guys, based on that information and other information reviewed from earlier posts in the forum, I could easily fit the +22 offsets with 9.5" and 10.5" respectively without having any issues on the Coupe.

So like Mark said, first thing is first, look for the width of rims first. But will definitely be in the region of 9-9.5" front and 10-10.5" rear.

No lower than around +22 offset and not higher than +30, depending on what they can offer me.

Looking at the moment for second hand Jap wheels, brand new are bloody expensive, Work SC1 or SC2. Or if not, just go to the tyre place and pick up a set of non-Japanese heavy wheels, but look nice, for now!!!

[n15m0]

Alright guys, based on that information and other information reviewed from earlier posts in the forum, I could easily fit the +22 offsets with 9.5" and 10.5" respectively without having any issues on the Coupe.

So like Mark said, first thing is first, look for the width of rims first. But will definitely be in the region of 9-9.5" front and 10-10.5" rear.

No lower than around +22 offset and not higher than +30, depending on what they can offer me.

Looking at the moment for second hand Jap wheels, brand new are bloody expensive, Work SC1 or SC2. Or if not, just go to the tyre place and pick up a set of non-Japanese heavy wheels, but look nice, for now!!!

You will be hard pressed finding anything with a decent width and offset from a local tyre place.

PM me with your budget (wheels only), whether ur chasing 18s or 19s and type of wheel. I will have a look around for you...there are plenty of good second hand sets around if you know where to look.

[MILLOS]

Hey n15smo,

PM sent, thanks mate!

[BLISTC]

yahoo japan, streeter by streeter, import monster

you can get some nice 2nd hand rims for good price

i got 2nd hand nismo lmgt4 in 4 stud for my 180sx back in the day was like brand new

[RedDragonAus]

Check the wheels that will fit a G35 on TireRack.com. It shows offset options on some of them as well.

[MILLOS]

Thanks guys!!!

[Eldubb]

If the coupe comes stock with 18 x 8" rims, is it illegal to use a 19 x 10.5" width rim because its bigger than 2" from stock?

[MILLOS]

Is that right?

Is that in all states or only in your state. Where are you by the way Eldubb??

If that is the case then going for 9" & 10" might be better.....although you could still get away with it!!!

[Eldubb]

Im in QLD but im pretty sure its the same in all states..

[BLISTC]

its 2" diameter... but the track is illegal because its too wide.. so when a cop sees 19" they will be happy.

i have been pulled over in defect stations and RBT all the time here in sydney, and all the cops do is say to me "wow mate nice car, love the rims" and let me go!

-mark

[n15m0]

If you're In QLD, read this:

http://www.transport.qld.gov.au/resources/...r_vehicles2.pdf

These laws vary from state to state. My understanding from the above is as long as:

1. Wheels do not protrude from outer guard

2. Do not foul any suspension parts

3. Overall diameter does not exceed 15mm from factory specs

You should be fine.

[Frank350GT]

If you're In QLD, read this:

http://www.transport.qld.gov.au/resources/...r_vehicles2.pdf

These laws vary from state to state. My understanding from the above is as long as:

1. Wheels do not protrude from outer guard

2. Do not foul any suspension parts

3. Overall diameter does not exceed 15mm from factory specs

You should be fine.

It Seems a lot of discuss around.

OK Here is what I got:

Now I am with 18 NISMO LMGT 4 Black for coupe

F: 18x8.5 +25 with 245/40/R18

R: 18x9.5 +30 with 275/40/R18

Lowered with BC Racing coilover around 1/2" all around.

No issue at all.

So my idear is:

If you want to lower, do not take offset lower than 20 for 9"+ wheels unless want to roller guard.

For 9.5" and 10.5" wheels, +22 may be the lowest offset can got without roller guard.

My 30 and 25 offset fit the guard very well after lower.

Here is some pic before lower. Not bad for such high offset.

Edited July 13, 2009 by Frank350GT

[tonich]

why does front and rear tire size for V35 coupe is different ( is it stock standard). is it ok if I have 225/45/18 front and back ? ?