So I was just looking around for the weight on some rims I was interested in and I came across this chart. According to the site owner there's 3,932 rims listed.
It has the rim's name, size, and weight listed.
I just figured this could help some of the rest of you.
http://wheelweights.net/wheel-weight-weight.pdf

I searched so hopefully this isn't a repost.

 

Very good--this comes up fairly often--that is how much a rim weighs---I will keep it handy. Good find.........