Hi all,

What is the widest tire you can put on 18" A-Spec Rims? I saw the sticky regarding appropriate tire sizes, but am thinking of going wider.

I currently have 245/45/18 on them but am thinking of going 255/45/18. I understand there's going to be a difference in my speedometer with these.

Also, which tires are the quietest?

 

Just an opinion, but the OD of the 245/45-18 is 26.7" and the 255/45-18 is 26.9" so speedo will read slow by 3 mph @ approx. 60 mph. I decided to go wider also, and I put TSW Snetterton's on my RL 20" x 8.5" in front with 245/35-20 and 20" x 10" in rear with 285/30-20's. I'll post some pics soon, I think it might be the first set of staggered wheels I've seen an 2GRL. Michelin's Pilot Sport are the quietest in my opinion.

 

Talk to Slawek65 about wide tires on 18's, although, I think his are 8.5" wide.

 

I don't know how wide are A-spec rims. If they are 8" wide You can go up to 255 tire without any problems, 8,5" wide 265 tire and 9" wide 275 tire.I did try these sizes and they work great. P.S. How are You Chas2.

 

Im running 245/40/18
my aspec's are 18 x 8.5

 

I was unaware that Acura made any 8.5 inch wide A-Spec wheels. They usually run 18x8 inches wide, +55 mm offset. Even the 2005 A-SPEC SEMA show concept ran 20x8 wheels.

Regardless, you have Slawek65's answer about what he has tried.

 

yea they only made the tl a-spec in 18 x 8.5 's for 2004.