Wheel Tech Website

[gboone]

Seems this site has some valuable info if you're looking at different wheels:
http://www.rsracing.com/tech-wheel.html

[PaulL]

That's good.
Here's one that has the wheel weights of all sorts of wheels listed;
http://www.wheelweights.net/

[Proxenus]

That's good.
Here's one that has the wheel weights of all sorts of wheels listed;
http://www.wheelweights.net/

IMO the weights listed there should be taken with a grain of salt. I've seen a few wheels that didn't have the correct weights listed.