Picked up some Hankook Ventus V12 's on sale from Discount Tire, righht at @$110 each. Got 255/40-17 (25.03" dia) for the back, 245/45-17 (25.68" dia) for the front. I hope it is an optical illusion because the sidewall is an inch less than the 245/50-16's (25.64" dia)I had on before. Almost looks like the tires are too small. What you think? Or is the body kit adding to the illusion?







Just seems like the 245/50-16'S filled out the wheel wells a little more. Probably because I got less tire and more rim now with the 17's.

 

My opinion is that you should went with 45 sidewall front and back. That 40 aspect ratio looks small with that sidewall. I have a 3rd gen with 245/45/17's ft & rear.

 

Ah man they probably wont let you take them back and trade.

 

I'm going to take it back and try

 

Yeah those 40 series are shorter lookin'. I'd have gone with the same 245/45/17 all around, that way you can rotate them. The difference in width is minimal.

 

Yeah. I agree. I did all the research. Figured oh its only .6" difference...makes a heck of a difference in real life. May cost me some but I'm exchanging them.

 

Oh my that's to bad they are not going along with the game plan.

 

Don't know that. Have not talked to them yet...

 

not 100% but iirc discount has a grace period in which if you dont like the tires theyll let you swap them out. probably gotta pay the install fees again tho.

 

I remember something about that, discount is much better than most other places about returns. You might be fine.

I remember reading about the +1 width and -1 aspect ratio = same height rule, it is definitely not right, and a lot of lesser-experienced tire sales guys will just follow that rule and you can see how that worked out...

IME it is usually +2 or 3 width and -1 aspect ratio, so if you want the same height, you'd pair a 245/45/17 with a 275/40/17 or even a 265/40/17 if they even make that size

I paired up 205/55/16s with 225/50/16s on my old 240Z and that worked fine. Worked well to replace the original 195/70/14s.

Also a popular width upgrade for the 235/75/15 was the 255/70/15 or even the 265/70/15 which is a bit more rare. 10 years ago, you could find a LOT of tires in 255/70/15 although no vehicle came stock in that size (at the time). That's because it was so popular for trucks and SUVs as a width upgrade. NOT the 245/70/15....

Another interesting example is the 70's vettes. They came stock with either a 225/70/15 or a 255/60/15. I have to believe that switching from the 225/70 to the 255/60 caused some speedometer error.

I could go on and on...