Nice Gixxer; have one of those in our garage too (what's the Honda?). Congrats on the GG purchase and welcome to the forum!
If you need to find OEM parts, GoFaster's (
http://www.gofastersoffroad.com/index.htm) has a microfiche link on their site. I checked and found the following part number:
ME25936084 CIRCLIP DIN 471
Hope that helps
