18x8.5 ok with 245/40/18 tires?
 

Heya. I got a set of 18x8.5 and 18x10 rims. I have searched through other threads and it said that the best sizes for those size rims would be 245/35/18 for the fronts and 285/30/18 for the back. Those are the closest to stock offset is what one of the threads said.

It seems that 245/35/18 tires are rare. I can only find them in dunlops and pirelli's, but there are a lot of 245/40/18's. The 285/30/18's arent a problem and those are easy to find. I was just wondering if I should just go with the 245/35/18's or would I be ok with the 245/40/18's? I have stock struts, but will be using eibach springs. Front rim size is 18x8.5

Thanks.

Got $50? ;)

For what? :p:

who the f*@#$ knows. There is more mis-information on this site about this topic that I wouldn't even know what to tell you. I researched everything and walked away confused.

FWIW, I recently ordered 235/40 & 275/35 18"s (nitto 555's) on +37, +42's. 245/35's are rare like you said and I am optimistic that they will fit as Loi has the same fittament and his car is lowered much more than mine with ZERO rubbing. (rims are 9"s & 10"s)

Best of luck.

For giving you the right answer :)

Well there are many threads asking the same questions. The same answers are rendered and repeated. If you do the research the same theme in the answers appear...

Re: 18x8.5 ok with 245/40/18 tires?
 

The 245/40-18 is too tall, especially for a lowered car. Do the calculation for overall tire diameter, and you'll see for yourself. The short answer is stay with the 245/35-18 for the front. It's the perfect match tire diameter-wise for the 285/30-18. What's wrong with Dunlop and Pirelli?

Yours are 0.4 inches taller than stock. Depending on the front wheel widths, you might be ok. Nittos? I don't understand why FD owners go with Nittos. Ok, I get Kyle Bacon's reasoning for going with 555Rs Extreme IIs, but I don't get why FD owners choose the Nitto street tires. IMO, there are better tires for the same money as Nitto street tires.

I actually just got them b/c that is what the dealer had in these fittments. My understanding is that they are similar to sp8000's which I have reasonably good experience with + I didn't want to blow a ton of money on tires that I am not 1000% positive I know will fit.

Plus it appears the diameter of the Nitto 555's are slightly lower than the calculators predict....

Thanks for the input.

I'm going to go with a mix. Going to get the pirellis in 245/35/18 for the fronts and then get the Bridgestone S03's in 285/30/18 for the backs.

The 555 can't even compare to the SP8000 he was fibbing you. The 8000 was a leader in it's day. Lower treadwear rating and much stickier than the 555.

I would suggest getting the pirellis for the rear also.

rishie

Get Pirellis all around