245's on a 7.5 inch rim??
 

Im just wondering if a 245/40/18 will fit on a 18x7.5 inch wheel the wheels that I am looking at are only available in a 7.5 but I really like them a lot. I dont want the tire looking like its gonna fall off the wheel either. Any help would be appreciated.

yes it will fit. the 6th gens that have 18s have 245/45/18 but that is the wrong size and they rub but 245/40/18 will be good and wont rub.

you don't even have a 6th gen. Stop spreadin your lies.

http://forums.maxima.org/showthread....=1#post4797056

Look at the tire calculator in the Sticky.

I would go w/ 235/40/18s on a 7.5" wide wheels

Yeah I would go for the 235 but I have a set of 245 that are almost new so I didnt want to buy new tires. Thanks for the replies, Im gonna get the wheels.

Anyone else have any feedback?

oem 6th gen SE are 18x7.5 with 245/45-18

the 40 profile you listed is NOT for 7.5 wheels. Like I said, you can see what tires fit using the calculators AND are closest to your OEM specs.

also this thread: http://forums.maxima.org/showthread.php?t=460792

I see what you are saying about the tire calculator. Can you break it down for me why a 245/45/18 can fit on a 7.5 inch rim and a 245/40/18 can not? The only difference is the sidewall, the width of the tire remains the same. Thanks for the help

it's the sidewall angle that is relevant in this case...with the shorter sidewall (40) the angle down will be greater, and will not provide proper support for the car. The tire is "strongest" (so to say) when the sidewall is vertical. When you go to a wider tread and shorter sidewall, you are in essence putting the sidewall at such an angle from the tread to the wheel rim that it will either: 1) not have sufficient strength to support the car correctly or 2) will slip off the rim and cause a disastrous loss of control.

the manufacturers designate certain tire sizes for certain wheel sizes for a reason...and that reason is safety.

Gotcha Thanks for the explanation Irish!