neilman

As we've read many times in the forums...the TL wheels are way too small for the size of the car and wheel wells. I actually don't think it's just about the rim size...but the overall diameter with the tires and rims is a little too small.

So are there concerns with going with a 255 tire instead of 245? That adds 10mm to the overall diameter and would provide an overall sightly wider (5mm) look as well.

If I plus size to 19 it will limit the sidewall decrease from 110mm to 102mm instead of 98mm with 245s. That would mean less change in the firmness of the ride (2/3 of the decrease in sidewall height).

Seems like a good option overall...am I missing something?

I searched the forums and didn't find any comments / discussion on this.

jangkai

to fill up the wheel walls, drop is a must. bigger wheels without a drop will make you look more like a 4x4.

whatever size you go with, just remember that you need to be within 3% of the original size and rolling diameter.
if not, your speedo will be off, and your braking distance will be affected negatively.

for example, from stock 245-45-18, if you want 255 with 20" wheels, you will need to go 255-35-20. try one of the tire wheel calculators and you should be good.

kenny powers

will 255's fit on the stock AWD rims?

Pete2010

Sure - they'll probably look a bit beafy on the wheels... Why not just get the same as the factory, 245?

Chas2

Stock AWD wheels are 18x8.0 with 245/45-18 tires.

Will 255/45-18 tires fit? Yes, but they will be larger rolling diameter, about 1.3% difference, which is probably acceptable, and they will still fit on 8 inch wide wheels. Of course that size is not recommended by Acura.

255/40-18 tires will not fit... Recommended minimum wheel width is 8.5", plus the rolling diameter is too small by about 2.5%, too much difference IMHO

The correct Plus 1 size for 18's to maintain stock rolling diameter is 275/40-18, but they need a 9 inch minimum wheel width. Would they fit? Probably, with the right wheel. There is a 2006 RL running this set up with 9 inch wide wheels, and they fit perfectly, but you would probably throw up at the cost of the wheels.

kenny powers

Thanks for the replies I was just looking to put a wider tire on mostly for looks from the back side lol

neilman

I'm thinking 255/40/19 with 19 x 8.5 rims with 45 offset...It will give me a wider look and limit the decrease in sidewall height coming from the 245/45/18 which I already find firm enough.

Chas2

In that case, 255/40-19 will require a minimum 8.5 inch width wheel. The rolling diameter will be about 1.3% too big, which is acceptable IMHO than the true Plus 1 which is 245/40-19.

SteveB7713

How about going 245-45-19. This would fill the wheel well a bit, as well as improve ride over the stock +2 of 245-40-19.

I am considrering this once my stock 19" HPTs wear out. Thoughts anyone?

Pete2010

Your speedo is going to be off by about 4% - which might be too much. You'll always be going faster than your speedo says.

neilman

I believe the guideline is to stay within 3% of the original speedometer reading...otherwise there could be problems with the brakes, suspension etc.

jnc2000

I ran 265/35/18 on my 3G dropped on Koni SP3s - loved the look, and the function.

FTR, I was running the 04' Aspec rims (18x8.5).

If you're looking for a more aggressive stance I'd look for a different offset in conjunction with a wider rim. Keep the size 18 or 19 (forged) and you'll ensure lower rim weight while keeping strength.

I hate cars

255s are fine on an 8" rim. I've been running them for 60,000 miles now.

You can run whatever diameter you want an you'll have no issues with the electronics as long as all tires are the same diameter. The downside is an inaccurate speedo.

Here's my 255s on the stock 3G 8" rims. They definitely give it a more expensive look and IMO don't look out of place on the 8" rims. No irregular wear, no handling issues and I've done several track days on them.

neilman

Good feedback...thanks!

Chas2

Just saying that rim widths are recommended by the TRA and ETRO, which have organizational design standards that all major tire companies subscribe to. The design standards say that past experience and engineering practice has shown that wheel widths outside these ranges will stress the tire in a manner that may result in poor service and potential tire failure.

This is not say you cannot run a tire on a narrower than recommended width, but it is not recommended. Any tire specification sheet will give you the recommended rim width range.

For 50-series tires and higher, the measuring rim width is 70% of the tire's section width rounded off to the nearest 0.5." For example, a P255/50VR16 tire, which has a design section width of 10.04", is measured on a 7" wide wheel.

For tires that have an aspect ratio lower than a 50-series, the measuring rim is 85% of the tire's section design width. Therefore, a 255/40ZR17 tire with the same 10.04" section width would be measured on an 8.5" wide wheel.

Similarly, you should not vary from overall rolling diameter too much (typically 2% to 3% is the limit), otherwise you will change effective gearing, affect braking and potentially how things such as VSA computer treats certain situations, because it has been programmed assuming a certain tire rolling diameter.

Tony Nix

Hi guys please help out! I have a set of brand new 255 45 19 summer tires from my previous car. Now I have a 2012 TL Acura Tech and I want to put them on. Beside the speed difference will there be a problem using these tires?
Will it touch the car body in curves? Anyone had these size on? And complaints?
I really want to use it or I will lose over 600 dollars.

WraeDeoHed

I'm actually wondering the same. I want to put a 19" wheel on a 255/40/ or 245/45 tire to have more sidewall. What kind of wheel width would I need for that?