S4RS Swinging arm question

[lilacsplash]

Hi,
I don't usually post in the Monster section, or on Speedzilla for that matter.
I mostly hang out on the Superbike section or the 851/888 Forum.
But I'm trying to repay a favour to a good mate who helps me out a lot with my 851's.
I need to find out the weight of a S4RS Swinging arm?
Any help or pointers in the right direction would really help me/us out.

Thanks in advance for any help you can give.

Steve R