Weight system of yonex's rackets

The weight system of yonex's rackets:

Every manufacturer is different and most of them measure there racket's weight differently.
Well I'm going to explain there rackets weight system.

U = the heaviest racket that is in yonex's range.
In yonex the u is : over 95 grams
In yonex the 2u is : 90-94 grams
In yonex the 3u is : 85-89 grams
In yonex the 4u is : 81-84 grams
In yonex the 5u is : 80 grams or less.

And normall you will see the 'G' sizes on all yonex's rackets. The G stands for a thick handle.