Hey guys,

Was hoping someone could help me with this. Ive searched through the forum and called the dealership but could not get a straight answer.

I have a 2010 G37S and I am trying to buy some winter tires. Ive figured it would be cheaper to buy 18s and get winter tires for them rather then the stock 19s.

The dealership told me that I need to get 225/50/18 but I am having troubles finding wheels. I am trying to buy a used set and not sure what specs it has to be. I found some 18x7.5 with the right bolt pattern but have no clue if it would fit.

Also for the tires, does it have to be exact 225/50/18. Would 235/55/18 fit?

Any would help would be GREATLY appreciated.

Thanks

 

I know I'm not much help being in TX, but keep in mind when buying 18's you have to find something that will still clear the Sport brake calipers...

 

Tires don't have to be that exact size but I wouldn't go w/ a wider tire and a taller series sidewall, a 235/50/18 would be better.

As far as 18s that will fit, check the classifieds on the site, quite a few sedan 18s coming off S models so they'll clear the brakes. You can also go on my350z.com and check their for sale listings, most 18" Z wheels clear the big brakes. Here's a template that you can save if you ever need to send it to a seller, or for your own measuring.
http://infinitig37.com/tech-images/akebonotemplate.pdf

 

Going with larger tires will mess up your speedometer. So long as all 4 corners are wear same size your traction control/abs should work ok. 225/50/18 is the preferred size for this car. You want a narrower/taller tire in the winter for several reasons - better drivability in the snow, more flex in the sidewall to handle all the pot holes you won't see.

 

Hey im running 245/45/18 on my G37x coupe.

Runs very nice i think my stocks were 225/50/18

I like having the wider tires , they look nice on the car

 

First is do you have a BBK? If you do, then your wheel size choices will be limited to aftermarket wheels as I do not believe any OEM wheels will fit other than the staggered 19" couple wheels.

If no BBK, then any OEM wheel made for the G37 coupe will fit. You can also find aftermarket wheels that will fit both BBK and non-BBK cars.

Next, you will want to stick with the thinnest tire you can. 225 mm is going to be this thinnest you can go. The tirerack is a great resource for why you want to get a thin tire for the snow. You will want to stick to OEM sizes for various reasons. There should be plenty of options available at OEM sizes. Tirerack is a great resource.

 

The whole car will look even nicer when you lose control in the snow and crash

There are plenty of 18" aftermarket wheels that fit BBK just fine. Recall the sedan comes with BBK and 18" wheels stock. I'm running a set from discount tire with my winter tires. It's a tight fit, but works.

If you're running summer tires and intend to use the car in the snow, don't skimp on proper tires. It will cost more in the long run.

 

I just ordered a set of Goodyear ice grip WRT for my sedan in 235/50/18 all around. They were decently priced.

 

I found OEM Infiniti 18" wheels on EBay....i plan to put 225/50/18 Yokahama WDrive tires on them.
It might be worth a look.

 

first off where do you live? your winters might not be that bad to warrant buying a winter set.

All you need is some good All Seasons the roads in neighborhoods are usually paved and the snow melted it you have to do any driving for work

 

Much better winter tires out there for the money. For example, any other tire. lol

 

Disagree BIG TIME , my 245/45/18 are perfect of my X Coupe, in no way will you lose control and crash .... , anyways everyone has there opinion I live in Montreal Canada SNOW Storm LAND , my Coupe drives amazingly with my X-Ice 3 square setup .

I speak from experience not random BS which is clearly what you stated .... Tire calculate the two sizes and they are both 26.XX in diffence is 0.66%+
Btw JSolo , you drive an S Sedan , maybe you might lose control and crash in a real winter , hopefully for your sake you don't !!!

Again maybe 225 tires are better for various reasons but your statement that 245/45/18
Are dangerous is unreasonable and not factual.

 

Review the OP's tire size of choice - 235/55/18 . That's over an inch and quarter taller sidewall than stock. Guaranteed to throw off the speedometer - 5% according to one online calculator.

We have plenty of real winters here in Chicago - 80 - 90inches of snow annually. Primary reason anyone invests in winter wheels/tires is for safety, not looks. Wider tires do not enhance traction in snow.

I'm not going to debate this any further with you. You're welcome to run what ever tires and sizes you wish.

 

Agreed. There's no point. His car, his tires. We're no Canadians eh, but we see plenty of snow in the Midwest.

General rule, thinner and taller = better in snow. Do what you will.