couple wheel questions...

[Sprayy]

About to pounce asap from work on a set of winters, they're 18", 225/55's mounted on 350Z rims, 5x114.

Will these fit on my M45 sport with any issues? Is there anything else I need to worry about or pick up, like TPMS stuff?

Thanks guys!

[mexillis]

That tire size is too big in over all diameter. Use this site to put in the tire sizes and you'll see what Im talking about.

http://www.1010tires.com/TireSizeCalcul ... ion=submit

[Sprayy]

27.74 is too big? They're stock 350Z rims.

Should I be looking for 17" winters then?

So would 225/40/R18 be too small then? I'm so confused

[sergio1987]

Yeah...I am also doing the same research and everybody is telling me to stick with the all-seasons:) If something I'll sue you guys:))))) But be prepared, 245/45/R18 are extremely expensive winter tires...

[mexillis]

if you look on craigslist for used winter tires or whees, you can find great deals on there. I found four 245/45/18 blizzacks for a 100 hundred bucks the other day. Any nissan or infiniti rim will fit on a M, the bolt pattern and bore match perfectly. The only thing you can have trouble with is the tire combo. Use the link i posted to find out if the tire set up is less than 3 % difference in overall height. If it is than you'll have less chances of causing damage to your vehicle.

[rgb129]

The advice above isn't 100% accurate. The difference between 225/55 and 245/45 is a small difference in overall diameter increase. That is no where near enough to have to worry about rubbing. This will, however, *slightly* throw off your speedometer and your odometer...you just need to be aware of that. It is negligible in this case though.

There is one BIG clarification here. 55 is not the actual measurement of the sidewall! It is the percentage of the width that gives you the sidewall height.

Examples: 225/55/18 = 255 is the tire width, the sidewall height is 55% of 225 which is 123.75mm. 2 * 123.75mm (top and bottom) plus the 18 inches for the wheel means a total diameter = ~27.74 inches

Stock S wheels and tires:
245/45/19 = 45% of 245 = 110.25mm sidewall height...total diameter is ~27.68 inches


245/45/18 stock for my car (X model) is 26.68" diameter and I run 255/35/20 which is 27.02 diameter and (before lowering the car) I still had the SUV look.

[mexillis]

anything over 3% isnt good for your car, yes you can put 22"s and 24"s on a car with no rubbing and drive like normal but it isnt recommended. The difference is 3.72% for the specs mentioned by the OP and IMO wouldnt put on my car cuz of that.

[rgb129]

anything over 3% isnt good for your car, yes you can put 22"s and 24"s on a car with no rubbing and drive like normal but it isnt recommended. The difference is 3.72% for the specs mentioned by the OP and IMO wouldnt put on my car cuz of that.

The only problem with it is the speedometer and odometer. Other than those two, there is nothing that is bad for the car.

[Sprayy]

Fortunately or unfortunately my car has the stock 19" rims so I need to buy an entire new winter set. Due to a family emergency and me having to lend some cash out money is very, very tight at the moment.
Hence why I'm looking at around at difference used sets on craigslist.

I see a set of LM22's (Which are by far my favourite winter tire) 245/45/18's on Icons for 800 bucks. I'll try to snag those up.

Thanks for the help guys.

So one person saying I can't use the first set, and one saying I can :P

if you look on craigslist for used winter tires or whees, you can find great deals on there. I found four 245/45/18 blizzacks for a 100 hundred bucks the other day. Any nissan or infiniti rim will fit on a M, the bolt pattern and bore match perfectly. The only thing you can have trouble with is the tire combo. Use the link i posted to find out if the tire set up is less than 3 % difference in overall height. If it is than you'll have less chances of causing damage to your vehicle.

[sergio1987]

The advice above isn't 100% accurate. The difference between 225/55 and 245/45 is a small difference in overall diameter increase. That is no where near enough to have to worry about rubbing. This will, however, *slightly* throw off your speedometer and your odometer...you just need to be aware of that. It is negligible in this case though.

There is one BIG clarification here. 55 is not the actual measurement of the sidewall! It is the percentage of the width that gives you the sidewall height.

Examples: 225/55/18 = 255 is the tire width, the sidewall height is 55% of 225 which is 123.75mm. 2 * 123.75mm (top and bottom) plus the 18 inches for the wheel means a total diameter = ~27.74 inches

Stock S wheels and tires:
245/45/19 = 45% of 245 = 110.25mm sidewall height...total diameter is ~27.68 inches


245/45/18 stock for my car (X model) is 26.68" diameter and I run 255/35/20 which is 27.02 diameter and (before lowering the car) I still had the SUV look.

GREAT INFO!!!!Thank you

[mexillis]

From what i can remember it could affect your ABS and/or any other comp. controlled traction sytems along with what u said RGB. It doesnt always happen but since it could happen i tend to stay away from those possibilities. Murphys law sucks but is soo true

[rgb129]

From what i can remember it could affect your ABS and/or any other comp. controlled traction sytems along with what u said RGB. It doesnt always happen but since it could happen i tend to stay away from those possibilities. Murphys law sucks but is soo true

I have never heard of anyone having problems with ABS or traction control systems. They are unrelated to wheel diameter. I have put put wheels on most of my cars that I have owned and never had a problem. I also am friends with a guy who owns a custom shop and he has never had a problem with diameter with the systems you mention above.

I believe you are confused with staggering wheels (even with staggering, I have only seen one person with a problem related to stability control) not with diameter.

[njjuliano]

Wider vs Narrower debate on snow, comes down to compromise. You can look at vids of snow races, mud, and you'd see skinny tires, not wide. Thought process (one of) of skinny tires is they cut the snow better, and get to the road quicker. Of course, once there, have a narrower stamp on the road. So, usually, get skinny enough to push away the snow, but wide enough to get more road stampage.....

No, I definitely do not think going wider than 245 will help vs 225. 265? Not safer at all. You'd be staying on top of the snow, assuming you are talking real snow.

All that to say, that the diff on what was discussed above is not that huge, 225 vs 245, especially for daily driving.


***a year later***
something is screwy with this thread. I dont remember my post belonging here, cause I was responding to a debate on tire width, not diameter. Was my post moved, or were there posts that were deleted?

[Sprayy]

Will FX series wheels fit our cars?

I see P265/50R/20 for sale for winter tires....really need some badly.

[zerg711]

Will FX series wheels fit our cars?

I see P265/50R/20 for sale for winter tires....really need some badly.

LoL. My M is parked next to my 2006 FX35 with sport package. I can honestly say they will not fit. hahahah