Mazda3 Forums banner

when buying Rims, what is the most important to you?

2766 Views 18 Replies 14 Participants Last post by  Hoyinpng
Price? (cheap and afforable, the more expensive, the better they are)
Weight? (lightest one plz...)
Style? (5 spokes, 6 spokes, 16"inch 19inch :roll: ...)
Color? (black, silver, chrom..etc)

What are the advantages of using Light weight rims?
1 - 4 of 19 Posts
Lightweight wheels would give you better acceleration and shorter stopping distances (less rotating weight, easier to get it moving, easier to stop it from moving).

We just need to figure out how much of a difference it makes. Going from the standard 22lbs to 19 or the other way around going to 25lbs. The other variable is weight distribution. Weight that is close to the center of the wheel is less of an issue compared to the weight that is near the edge.

I was considering a set of wheels but when I saw that the weight was 25lbs I kind of walked away. Can anyone give some input on this ? When do you start feeling the difference? 1 lb difference, 5,... ?
7 lbs / wheel (almost 1/3 of the weight less) probably makes a noticeable difference. But where does it start ? How much would the MZ3 suffer from having 25 lbs wheels ?
Problem with weight is that it's not weight alone, the distribution of it is also very important. A heavier wheel could perform better than a lighter one depending on where the weight is. What comments can we make about the MZ3 17" 22lbs wheel and the distribution of that weight?

As for me, weight and appearance (shape and color) are factors. As for the price, as long as it's "reasonable", what is a few hundreds more when you're already spending thousands... :wink:
Here you go, this should give a pretty basic explanation: 10.html

"The moment of inertia of an object depends on the mass of the object, and on how this mass is distributed with respect to the axis of rotation. The farther the bulk of the mass is from the axis of rotation, the greater is the rotational inertia (moment of inertia) of the object."

"The moment of inertia of an object is a measure of its resistance to angular acceleration"

This is why when you swing a baseball bat it is easier when you hold the big (heavy part) compared to when you hold the handle. This is also why a heavier wheel could be better depending on weight distribution.
1 - 4 of 19 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.