Originally Posted by jschmid

Sure, a general guideline is that if the weight of the wheel is the same or less in lbs as the diameter, it is a "lightweight" wheel. I wouldn't worry about an 18lb wheel at all. Some oem Acura 17" wheels weigh over 20lbs.

Just make sure you find a wheel with acceptable offset and get the right size tire.



If you get a tire that maintains your overall factory diameter, then you won't have that problem.

Sure if you want to get nit-picky and look at the fact that my 225/40-18 tires don't flex as much as the factory 195/65-15 (i4 size) and that under load the 18" tire may be slightly larger, but when you consider variations in PSI and even tire wear, my 18" tires are the same diameter as the factory size for all intensive purposes. Realize also that most cars read slightly higher than the real speed. I'm not sure what you are using to determine your real speed, but even with the factory wheels and tires it's possible to be going 32mph and show an indicated 35.