Rob P

I have been browsing and am looking into purchasing a new set of wheels for my c5z06


I am confused with wheel weights and there significance. For example a stock 18" speedline is roughly 21lbs if I recall, What would the benefit to find something that is light weight say 19-20lbs or a 3 piece?

There is a significant price difference so I would love to be informed. I understand a 5-10lbs weight difference makes a difference but a 2lbs?

Appreciate it.

0Luke@tirerack

unsprung weight ( weight ourside ofthe suspension i.e. wheel, tires and brakes) does have a direct influence on performance. A rough rule of thumb is that every 5 pounds of unsprung weight is equivalent to 80 pounds of sprung weight. Add to that the rotational mass and it does make a pretty big impact on handling, acceleration and braking.

Short-Throw

A lighter wheel/tire combo even a few pounds makes a difference not only in performance but on your components.

If you damage a wheel, a 3-piece offers the possibility of fixing it cheaper as it may just need a simple rim replaced. It can also be resized with the inner/outer drums but rarely would one do this. One piece wheels used to be much heavier, but they come a long way.

What you want to avoid is a light wheel that isn't structurally sound for the track (or street for that matter). Don't get caught up in price, you usually get what you pay for.

Mike

drivinhard

19.6 lb with no paint, 20.4 with paint.

in reality, it's very hard to find a same size aftermarket wheel that light

John Shiels

unless it is not made in China. Light wheels out there they just cost than heavy crap from China.

Rob P

How are the forgeline zx3r when comparing to the stock speedline? The weight seems to be the same or within 1lbs

John Shiels

Forgelines are great rims. LG sells them.

AU N EGL

that is 2 lbs of unspring wt or at 6 lbs sprong / 1 lb unspring

or about a 12 lb difference per wheel or 48 lbs total.

figure about 100 lbs per second a lap so your looking at may be 1/2 sec per lap. Rough approximation

froggy47

Wheel weight is huge, why they sell $$$$ titanium lug nuts. But if you are not already a 10/10ths driver spend your money on track time.