dannobre

iTrader: (3)

Should be OK.....255 are the normal outer limit for 8" wheels though....

volcomx31

iTrader: (4)

i don't get the fitment...i thought that any 18" wheels could fit any 18" tires... like 18x7 through 18x9 would fit any 18" tire...hah

Kingsfan

consider the width

dannobre

iTrader: (3)

If you put wide tires on narrow wheels...or narrow tires on wide rims...the tire profile will not be correct.....

At best it will result in poor contact patch shape/size....at worst it can result in tires coming off the rims catastrophically. That's why manufacturers have recommendations for tire width/rim width combo's

FrankTome89

hey guys im new here mainly because i just purchased my rx8 but i had a quick wheel question i have a hook up at a local autoparts store never the less i get konig wheels for wholesale and as much as i cant say what that is its very.... large never the less i think i found the konig wheels i have decided to go with the car itself is silver with black tint all the way around and ive decided to go with some black deep dish quick i would like ur guys opnions on the wheels ive chose and if the will fit and with what size of tire

the car is lowered on eibach pro-kit springs 1.2 drop f/r

the wheels are
http://www.tiredealersites.com/konig...ails&wid=27959

there 19x9.5 +40 offset i was thinking all four around i love these wheels however will they fit with the 1.2" drop ? and whats the largets tires i can go all around on them will it rub?

i can go with the 18x8 +40 im next to positive those will fit with the drop but whats the largets tire sizes i can fit on them

Thanks

p.s. sorry for the miss types to lazy to get my contacts

Cody Red

18x8.5 +38 with a 255/40/18 tyre (rt615)

with tein flex in mind.

also, would a 255 rt615 fit the stock wheel? 40 or 45? i know 255 is the max, but i've *heard* rt615s run a 'little' big.

FrankTome89

so i did some more research and mad props to lurch519 his information gave me the most help

http://www.tiredealersites.com/konig...ails&wid=12121

there 18 x 9.5 +40
all the way around now using a tire calculator

if i get 255/40/18 it would be the exact same dimensions as lurches wheels except less rim more tire but over all the same dimensions just waiting for a more exsperiences forum member to clarify this being ok

p.s. can i go 265 without rubbing issues once i get my coilovers

FrankTome89

our new best friend http://www.miata.net/garage/tirecalc.html

swoope

iTrader: (5)

you will do much better with the 255 / 40 / 18 on the stock rim than a + 38offset 8.5inch wheel.

btw. the 245 40 / 18 will fit on a lightweight 7.5 inch wheel

beers

Dremd911

Will a 225/40/18" tire really effect the driving of the car...i know it comes with 225/45/18 but there is a really good deal on a set that is 225/40/18 and im thinking about using...any suggestions i would love to hear thanks guys

chrism

speedo will be off by 2%

Dremd911

Is that all?....man somone is selling a new set for $150 i dont think i can pass that up with my 20-30% left on my current set...=o)

NSrobbie

hello,
I will be lowered on megan coilovers.
1) 19x9.5 offset +38 245/35/19 all around
2) 19x8.5 offset +38 245/35/19 all around

is there a big difference? (sorry im new at this) if so, which one would be better?

Thanks,

RXSeven1

how about 18x10 +44 rear with 265/40's?

dannobre

iTrader: (3)

They both will fit...the 9.5" will be 1/2 inch further out than the 8.5 at the same offset.

dannobre

iTrader: (3)

Rims hould fit as well....I have 18X10.5 +43 on mine and they fit no problem....they are about 5 mm outside those...the tires you probably want 265-35-18 not 40's...that might make them not fit

imput1234

iTrader: (6)

Will 18x9.0 +32 offset fit?
Anyone have pictures with this offset?

bose

iTrader: (5)

rota torque's 18x8.5 with either 43 or 48 offset (which ever fits better, not sure) with some 235/40/18?

Which off set will work better and would I have to worry about rubbing? Thanks.

SebtownRx8

Yes the 19x9.5 will rub in the F, the rear will be close maybe on bumps and stuff might rub.
The 19x8.5 will be so nice and with the 245/35/19 its the closest you can get without rubbing and its a nice feel over stock imo. Just had mine done with that setup and its no problem at all rubbing. as far as you being lowered it might be a different story.

cks796

19x8.5 with a one inch drop? Will it be flush with the body? Or am I going to need to go a bit skinnier?

~CK

Kane

iTrader: (1)

Tire Size and Offset?

Need all the details.

rreign

After sitting here for the last 2 hours reading posts,(yes a newb that searches and reads) I still don't understand the tire/rim sizes or what the hell the offset is or does. I usually just bought rim/tire pkg and drove. I am sitting on 225/40R/18 and they are 8.5 wide. What that means, I don't know but I want to get some new rims and tires but I am dropping my ride 1.2" all around. Whats a good setup to run? Just wanted to add, I'm not completely lost when it comes to this car, I just dont understand the tire ****.

xtmesisx

dropping your car doesn't make you rub any more than stock ride height, it just increases the rate and severity at which you rub.


things to keep in mind.

oh yeah, check this out too. http://www.1010tires.com/TireSizeCalculator.asp. it's a tire calculator, let's you play around with rim/tire setups. their prices suck, but the reviews and the calculator justify their existence.

dannobre

iTrader: (3)

Offset is the distance from the wheel centerline to the mounting face of the wheel

So a +50 offset has the mounting face 50 mm ( about 2 inches ) from the center of the wheel towards the outside (face) of the wheel

See picture above....

rreign

OK well 2 posts later and I finally understand Thanks for the calculator too. I was wondering if this setup would work... If I understand this completely, I think it would. But hell I just learned it like 2 minutes ago

225/45R/18 F 18x8.5 or
225/40R/19 F 19x8.5

255/35R/19 R 19x9.5