Quote:
Originally Posted by JazzleSAURUS
Also to more directly answer your question, tire is GENERALLY lighter than wheel is. So a comparable OD and width package in a 16" package will be lighter than an 18" package, but the 18" package will be a bit more communicative, and likely give up a bit of grip. That is, imo, why these cars come with 17" wheels. It balances ultimate grip, (compliance in the sidewall, which helps retain grip during transitions, as well as dampen road shocks from the tire to the wheel,) with communication, (a shorter sidewall is naturally stiffer, which communicates better and offers that 'razor sharp' feeling.)
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I was playing around with that tire size calculator. Just out of curiosity, if I were to get 18" rims with the shortest sidewall possible, which would essentially make it a similar tire size to the stock tires I have now, would that have a noticeable difference in how the car handles/performs? What would be some of the differences that I could expect to feel? Here's the tires that the calculator provided:
Tire Size Equivalent Diameter
225/35R18 24.2x8.9R18 24.2"-1.6%
205/40R18 24.5x8.1R18 24.5"-0.4%
235/35R18 24.5x9.3R18 24.5"-0.4%
285/30R18 24.7x11.2R18 24.7"+0.4%
215/40R18 24.8x8.5R18 24.8"+0.8%
245/35R18 24.8x9.6R18 24.8"+0.8%
255/35R18 25.0x10R18 25.0"+1.6%
295/30R18 25.0x11.6R18 25.0"+1.6%
225/40R18 25.1x8.9R18 25.1"+2.0%
265/35R18 25.3x10.4R18 25.3"+2.8%