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Debating 20” Wheels

BonnieD

Member
Sep 11, 2019
27
9
Los Angeles
I’ve noticed several people who have wanted to switch their 20” wheels for smaller. Why? I was considering upgrading my Aero wheels to 20” wheels for aesthetics, but am curious as to why people are doing the opposite. Also wondering what impact this will have on range?

thanks!
 

Solmors

Member
Jun 11, 2019
110
95
Seattle
The main two benefits of going from the stock 20" to aftermarket 18" are potholes and weight. If you live in a place with lots of potholes, you will likely pop a tire and/or bend a rim with 20" wheels as the 18" give you 1" more sidewall. The stock wheels are also rather heavy, roughly 29lbs each. There are many aftermarket wheels that around ~21lbs each, losing 8lbs per wheel will increase range and acceleration.

Plus, if you get black wheels it is harder to tell the difference between 18" and 20" than if you got silver/light color.
 
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jkoya

NA2 NSX
Nov 21, 2018
3,626
1,569
Northern CA
The main two benefits of going from the stock 20" to aftermarket 18" are potholes and weight. If you live in a place with lots of potholes, you will likely pop a tire and/or bend a rim with 20" wheels as the 18" give you 1" more sidewall. The stock wheels are also rather heavy, roughly 29lbs each. There are many aftermarket wheels that around ~21lbs each, losing 8lbs per wheel will increase range and acceleration.

Well said !!! Fear of a bent wheel or blown sidewall during a road trip is why I'm getting a set of 18"s....
 

ChadS

Last tank of gas: March 2009
Jul 16, 2009
3,365
2,780
Redmond, WA
18s likely are better for potholes in general. But they are no guarantee...the only wheel I have ever had crack was an 18". My 20s (and 21s for years on an S) never had a problem.

The larger wheels generally result in slightly sharper handling, too.
 

run-the-joules

Turgid Member
Aug 13, 2017
3,785
7,342
SF Bay
The larger wheels generally result in slightly sharper handling, too.

In theory, sure. But given the same tires on the same car, at the same width? Anyone who claims to be able to notice the difference is either delusion, intentionally lying, or a professional driver.
 

ChadS

Last tank of gas: March 2009
Jul 16, 2009
3,365
2,780
Redmond, WA
In theory, and practice.

I am not a professional driver. Go ahead and pick whether I am lying or delusional.
 
Oct 20, 2019
58
49
Fredericton
19's for the happy medium?
+1. 19s at factory or slightly better weight aren't that hard to find and are usually easier on the wallet. They'll also have a bit more sidewall than the 20s.

That's what I'm doing for sure. Will probably have to drill out the holes for the 3's lugs on most reasonably priced aftermarket wheels but not that big a deal.
 

jkoya

NA2 NSX
Nov 21, 2018
3,626
1,569
Northern CA
I was set on 18s, but after reading the posts in this thread, I'm now considering the 19s also. There are way more choices of wheels in the 19" size that work with the Performance 3...
 
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