Currently I am running conti dws 235 45 17 on stock type s wheels all around. My rear tires need replacing and I would like to go with 245 45 17. My fronts are like new. Can i run 245 45 17 on the rears and keep the 235 45 17 up front without any issues?

 

Can you? Yes.

Why would you, is the better question.

If you change to 245's, do it all around.

good thread to check https://acurazine.com/forums/tires-w...5-17-a-802707/

 

Well because the fronts are like brand new so I was just wondering why not if they dont cause any issues. Only the rears require replacement for now.

 

If you live in a state that snow's, stick to 235. If you want the wider look go for the 245's. All on personal preference and where you live.

 

I definitely want the wider look. I just dont want to waste 2 perfectly good tires up front. So id be ok with going 245 on only rears for now if and only if having 235 up front and 245 on rears wouldn't cause any issues with VSA etc.

 

Interesting... how did the fronts stay relatively like-new while the rears wore out? No tire rotation? Flats?

Once you mix your tires -- 235 up front, 245 at the rear -- tire rotation will be limited to side-to-side, assuming your tires are not directional. And as @04WDPSeDaN mentioned, narrower tires are better for cutting through snow whereas wider tires offer more grip in the dry. As for VSA and SH-AWD, they will work fine as long as the the tires on the same axles match.

235 fronts, 245 rears definitely look good! That setup is preferred on RWD sports cars as the added grip at the rear reduces oversteer. Note that oversteer is not a problem with the TL.

 

First off, get your car aligned. Your rear toe is probably off.

I run 255/35/18 tires in front and 245/40/18 in rear.

 

I recently purchased the car and the car came like that so I cant say for sure. The rear tires actually still have a decent amount of tread left its just that the tread is uneven or something like that my tire guy said. He said the tire can get damaged if your shocks arent good but my shocks seem fine. The rear tires are causing a vibration on highway speeds aswell as a noise that almost sounds like a bad bearing.

I live in nyc so im not too worried about snow. Plus im coming from a e39 bmw that had 245s up front and 275s in the rear plus RWD so lol.... But yea i love staggered setups even though i get it the TL is FWD. If i can get away with 245s on the rear and 235s up front for now without it negatively impacting any driving characteristics then i would love to do so.

 

Going 10mm wider won't do anything bad, but it'll drain an extra $15 per tire from your bank account!

Uneven wear is caused by 2 things, worn suspension parts or bad alignment.

Since you just got the car I doubt you know much about how it's been maintained. How many miles are on it?

Can you take a picture of the tread on all 4 tires and post it? Wear in the inside edges of the tires are caused by either camber or bad toe (alignment can fix this). Wear that makes a "swipe" pattern on the edge of the tire that you can feel with your hand is called "cupping/feathering" and is caused by worn suspension components.

 

I definitely have cupping/feathering. I think im due for shocks.

 

worn shocks will cause that. My recommendation is OEM or the Koni's. The Koni Yellows are about $650 for the whole car and have a lifetime warranty.

 

The 245 tire will always be taller, have a slightly wider section width, but you can get a 245 tire that is smaller (tread width) than a 235, so do you homework.

Depending on the manufacturer:
235 7.5" to 9" tread width
245 7.8" to 9.4" tread width

 

Are KYB the OE equivalent? Koni yellows I hear ride stiff true? What are some good websites to get parts for our cars? I have a 07 type s btw. Would I need some specific shocks for it or do all 3G TL's share the same shocks/struts? How does one know if their car came with the a-spec package as I hear a-spec package has different suspension.

 

I definitely want to go as tall and as as wide as possible to fill in as much wheel gap as possible. Plus maybe the wider tire will look a bit more flush with the fender. I just need a definitive answer on whether or not running the bigger tire on the rears only will cause any issues. From what I gather on this thread the answer is no.

 

^Have no experience with different size tires on the TL, but a poster above indicates that he has no problems with the different size 18" that are @ 11/16" (.69") difference in diameter. That's far greater that the @ 7/16" (.4") difference 235/245, so there should be no problem.

 

There are few here that could tell you for certain. I personally have seen ABS issues with different size tires front/rear, but they were on a different car, and way out of spec. I imagine you'll be just fine with what you're wanting to do.

 

you can do 255/40/17 or 255/45/17 and be fine.

 

Why not swap front wheels and tires to rear and put 245 on front?

My reverse staggered setup has no issues on street, autocross, or track days. Fwd track cars usually run reverse staggered.

 

Wait.... We can run 255 45 17 on our cars?! This is a whole new world to me lol.

 

Im not sure if I would like the look of that.