I am thinkin of using my current wheels (17's)for my winter setup......then getting new rims and falken 115 tires but on 18 inch wheels. For those that have driven a tl with both wheels how much harsher is the ride.....I am a little concerned as I do like the way it is now....so dont want too change it into a jarring ride.

 

That's why I stuck with OEM 17" wheels (but chrome).........the current ride suits me just fine...not too harsh and not too soft.....it's perfect and I'm perfectly satisfied with the handling. BTW, I love my Falken Azenis ST-115's.......it's very grippy, surprisingly quiet for an ultra hi-performance tire, and very inexpensive ($100/tire), and not to mention, very, very nice-looking....I highly recommend it.

 

acuraforsure, I have pretty much decided to do the same setup, 17" for winter and I have 18" on my TL currently. Personally, I don't find the ride significantly different, although it may be a little more rough. The level of impact on the overall ride will really come down to tire pressure (i.e. Running at 45psi will be a harder ride then running at 30psi).

Go for the 18"s!

 

Oh yeaaaahhh I like to drive my 17" deep into...oh, wait, you're talking about cars. So sorry.