Wheel weight.
 

I coulda sworn I saw someone asking what the weight was on the supra wheels, but am too lazy to find the post. Anyway I was looking for wheels myself and was curious enough to find out..

Looks like the sawblades weigh in at 23lbs each according to this website..

http://www.superhonda.com/tech/wheel_weights.html

wow, then all four almost adds up to a hundred pounds

i saw sum lightweight konigs in a website that i was browsing yesterday
which weigh about a scant 12 pounds, and they were 18 inch rims