I was thinking about upgrading to 20in wheels for my 2LZ down the line also. I actually think that the 245-40-20 setup will fit just fine. If you have a 2LZ with the upgraded 19in wheels then you already have the 245-40-19 setup so going up 1in will not change the ride that much if any. I belive the 40 aspect ratio profile is as low as I'd like to go to be honest. With my old 7th gen I had a 225-35-20 setup and had two cracked rims and busted tires to show for it. The tires really were rubber bands pretty much but man did the setup look good. Anyway, when the time comes for me to upgrade to some fresh new wheels I will be doing the 245-40-20 setup. If you check out the fit for the old 7th gen thru tire rack then you were able to do 225-50-17 and 225-50-18. Hell I had 225-45-18 setup on it and it worked out just fine. In short I think you'll be fine going with the 245-40-20 setup.
__________________ 2013 Chevy Malibu 2ltz Turbo
Crystal Red Jewel
Last edited by CoolandClever1; 12-30-2012 at 12:53 AM.
and yes i will be looking to sell the 19's its not a must, my fiancée has a 2lz so i could use them as spares, mine is black on black, hers crystal red on tan, whats a good price to pay for one fully loaded
Nice! I like the black interior of the rim. It keeps the outside as the main focal point by keeping the inside harder to see. Good design, too. Very similar to the LTZ rims I have now, and very airy. Hopefully that keeps them light so the suspension is able to work well.
'11 LTZ, born Aug 2010, Fairfax, KS
V6/A6, Red Jewel Tintcoat / Cocoa-Cashmere, Sunroof
Cool Mods: Drop-in K&N air filter; 20% tint, DRLs on turn signals,
Painted grilles, 1-wipe washer, WeatherTech mats, CHMSL Pulser
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