Just swap my stock wheels on my X for coupe 18s. Since the tires are staggerred, I need to get rid of 2 tires. Dont want to buy 4 new for the time being.

Fronts: 225/45/18
Rears: 245/45/18

What would you do? Go all 245/45 or all 225/45? Other suggestions?

For reference, I will be dropping the car over the next few months on Tein H-Techs or H/R Sedan springs.

 

make it all 245/45 ... the bigger the tires the better for driving and turning and much more stable and of course look a lot better.

 

245/40/18 all around.

 

You might want to run some calcs to see which is closest to OEM outer diameter specs. Sorry, but I don't have calc. near me, otherwise I'd do it for you.

I'm running slightly larger than OEM size when it comes to outer diameter (245/40/19), so if anything, you'll want to run the larger size, otherwise you'll have a more significant fender gap and your speedo will be off a bit (mine is off by 2% or so).

 

Stock sedan sport is 235/45/18. Look here to compare sizes: http://www.1010tires.com/tiresizecalculator.asp

I would go with the 245.

 

I agree with 245 but you may want to compare and do the calc as suggested above.

You will thank us later

 

Going w/ 245/45's Thanks all.

 

Good Decision.. Let us know what you decide and how it comes out afterwards

 

If I drop it, will I have rubbing issues with the 245/45s?

 

^^^yes and no depending upon your drop... You should drop it first unless you really need tires.

 

I'm dropped on Z/Coupe springs and I rub in the rear with 245/40 when going over some bumps. If I ever have my GFs daughter (~50lbs) in the back seat it rubs more.

Could probably be taken care of with a little negative camber.

 

hmmm, with the rubbing, looks like no drop for me on the x.

 

What tires are they? My Micheline pilot sports in the 255 width is almost if not more narrow than the RE050s in the 245 width.

 

i ran 265/40 michelin PS2 and they were rubbing but that was almost a given

 

Riken Raptor 245/45/18s