How much does a bowl of Ramen Jiro weigh?

Again courtesy of my friend K-san (in Tokyo)...

http://tatsuyanikaido.blogspot.jp/2013/09/blog-post_29.html

The above blog post has a list of most of the popular Ramen Jiro branches and the weights of the non-soup portion of the serving.
The "winner", coming in at 1139 grams (2.5 lbs) is the Hachioji branch, near Keihin Horinouchi station.

Reviewed here back in 2007:

http://www.ramentokyo.com/2007/06/ramen-jirohachioji-2.html