Those numbers are assuming that the tires are mounted on what wheels?

 

I would't think so, right?

http://www.1010tires.com/TireSizeCalculator.asp

FYI, I still have those Yokohama ES100 225-45-18 for sale

 

Keep drilling! The only solution for me to buy tires is if some charitable soul would puncture all four of my Potenzas...

j/k

 

Or you could take care of the dilema yourself by drifting or doing burnouts :D.

I measured my Potenza tread depths and at 6500 miles I have only 1/32" of wear, so I decided to stop drooling over new tires for now.

rx8cited

 

Yeah, I'm going to keep my stock (8") rims. I had them chromed, and they look nice. I think 245's will be more than enough for this car. I would just like them to be stickier. I also want them to be about the same width front and back to keep the great balance that this car has. I don't want to have any understeer problems when the width gets too big in the back tires.

 

I just put 245/40s on my stock rims after 32,872 miles on the RE040s. What a difference! I don't think the REs were ever this quiet. Maybe it was the wear (I still had about 1/8" of useable tread) but the REs were deafening.

Only had a few opportunities to check out the grip. Seems I'm taking a certain 90 degree left near me at a brisker pace.

I'm glad I went with the Yokos and the wider tire.