Another tire size thread..sigh..
 

Ok guys, I realize there are over a billion threads on the right tire size with larger wheels..I have searched and read through a ton but still would like some advice before I purchase new rear tires...here is the thing..I bought my s2000 with these aftermarket wheels and tires already on the car so Im not sure exactly how the previous owner made them work. When doing a search I came across two different offsets for this 18 X 8 wheel. One was +20 and one was +40 which Im assuming the offset of the wheels on my s2000 is +40 because there are 215/40/18 tires on the front and 235/40/18 tires on the rear. The issue Im having is my car is lowered with espelir springs(also came on the car when I bought) and the rear literally sits on the tires. It doesnt rub unless I hit a HUGE dropoff or hump in the road, but Im worried that with a brand new tire with full tread it may rub..also another issue I have with the tires is both the rear and front are 40 profile. So the rear being wider with the same profile makes them look so much fatter than the front tires. So, my question is should I go with the same 235/40/18 tires or try to maybe go 245/35/18 to lower the profile some? Im just trying to make the tires look similiar profile wise from a side view of the car, which they dont right now obviously. At the same time should I have any issues going a bit wider in the rear? Or is there a possiblity of the car looking stupid with 40 profile tires in the front and 35 profile tires in the rear? Im not sure where to go with this lol..I thought about 235/35/18 tires but its an off size and only like one or two companies make that size tire and they are $300 each..any input or help would be GREATLY appreciated

I guess everyone else is as confused as me lol... :banghead:

You have 8" +40 on the front too? I would think there would be more issue there. Anyway, I would run 245/35 in the rear. It would accomplish the look you are going for and the lower profile might be enough to keep you from rubbing. If not, you can always roll your fender or possibly add some negative camber depending on what your alignment is currently at.

Yep, it looks like the wheels are 18 X 8 all the way around. I would also assume the offset is +40 on the front wheels. I dont seem to have any rubbing issues on the front that I can tell.. and the tires are 215/40/18 on the front so I guess they are skinny enough..
So you do think that 245/35/18 would look pretty similiar as far as wheel gap and profile with the front tires being 215 40 18 then? I just want them to appear the same from the side instead of the rear looking like huge donuts compared to the front. Im assuming last time I had an alignment they aligned it to factory specs but Im not for sure. Like I said I dont really think I want to go with 235 40 18's again..also, thanks for the response.