2010_Type_SH

I've been thinking about getting wheels (non staggered) for my TL and I have noticed that most of you haven't gone wider than 245s on 18s, 19s, or 20s. Is there a reason why you can't plus size the width a bit? I do understand that 245s on different profiles and diameters are not all the same width but generally from my experience most cars allow a little play. For instances I was thinking 255/35/19s would look good all around but is the TL that unforgiving when plus sizing? Also I do like an aggressive offset with a slight drop to get rid of the gaps but I dont want anything that would require stretching the tires or adjusting camber. What is the lowest offset I can get? Sorry if this has been addressed.

neilman

See the attached link which may be helpful...

https://acurazine.com/forums/showthr...&highlight=255

Bearcat94

There's an error in that link that (I think) went uncorrected.

The "255" and "245" in the tire size refer to "section width" (the width of the tire at it's widest point) in mm.

So the 10mm isn't on the diameter (except possibly by shear coincidence), but on the Section Width - a 255 tire is 10mm wider than 245 tire.

The second number, for instance "45" in 255/45, is the Section Height, which is basically sidewall height, expressed as a percentage of Section Width. IOW - the sidewall is 255 mm * 45% = 114.8mm.

Also, keep in mind that "Section Width" is NOT "Tread Width" and that there is no standard for determining Tread Width - each manufacturer may measure and report Tread Width differently.


FWIW.

Mr Marco

255 = heavy, slower, bad mpg's, etc. There are a dozen other reasons not to run really wide tires.

Pete2010

If you went with wider wheels all around you could go from 245/40-19 to 255/35-19 or 265/35-19. The weight may be negligible if you go with a 35 profile instead of 40 on a 9" or 9.5" wheel.

Treblig

You could actually go 275/35-19 which is the closest to OEM diameter (0.53% difference).

Mr Marco

A narrower, lighter wheel and tire package would better serve the needs of the FWD 4G TL. No one has tracked a comparison with the AWD between the 245 and a wider (255+) tire and wheel combination. My guess is that with a set of Enkei Race RPF1 18" and a Mich Pilot Super Sports 245/45 would give either the least weight and best handling. They are certainly not the best looking choice, but I think that everyone looses sight of the real reason people started running alloy/mag wheels in the first place; to reduce un-sprung weight on the four corners.

Pete2010

^^ It's a good point, that if you're looking for lowest unsprung weight, then there really isn't much better (for the price) than the RFP1's. You could get the 8.5 wide +35 which *should* fit without rubbing (but don't quote me on that).

But one of the major reasons that anyone changes their wheels is simply for looks, to personalize your car. Most people aren't tracking their cars, and won't notice the diff of a few lbs per corner (not saying there isn't a difference, just that most people may not notice it).

Mr Marco

Yep, no doubt about it, the 20's look smokin hot on the 4G. The combination of the wheel diameter with that low 3.4" sidewall must fit that "golden ratio" that we see in nature because it just looks "right."

Edward'TLS

Agree. The RPF1 certainly doesn't look good. The problem with these rims is that they tend to look much smaller (i.e., a 20" rim will look like a 17" rim) due to the spokes don't go all the way to the far edge of the rims.

2010_Type_SH

Thanks all who responded.

My 2010 Type SH is not my only car. It's mainly used as a DD. Therefore I'm not really worried about performance, weight, etc. If I plus size I want the car to have a wider stance than stock.

I know this is apples to oranges but my old 350Z I was able to go 225/45/18F 245/45/18R to 255/35/19F 285/35/19R dropped on Teins Sports w/EDFC. This completely changed the look of the car.

I understand that the TL is a different car and that being AWD I would be better served not going staggered, but since I am not familiar with this car I don't know what the front and rear wheel wells could support.

This is what I am seeing:

The stock 245/45/18 Michelins have a 26.65 overall rolling diameter that is suggested for a 7.5 - 9.0" wheel. Staying with Michelin to keep things equal, the PS2 line in a plus size would yield:

255/40/19 - 27.05
255/35/19 - 26.02
265/35/19 - 26.34

Based on the numbers the 265/35/19s are the closest in overall diameter which requires a minimum of a 9" wheel. Ideally I guess I would like to be at 9.5 at this width. So diameter wise it looks like I am okay. However now I have plus sized the overall width of the wheel from 8.0 - 9.0 or 9.5, is this going to work? At what offset does the wheels need to be? From what I can tell the TL doesn't take very kindly to an aggressive offset. Everything I've seen looks to be in the 40 range.

Pete2010

265/35-19 on a 9" wheels is probably best. I'm guessing somewhere in the range of 35-45 offset will be ideal.

neilman

Here's a link to a calculator which may help...in case you haven't used it yet.

http://www.rimsntires.com/specs.jsp