Source for 520 aluminum rear sprockets

[C-Los SD]

Does anyone have a source for 520 aluminum rear sprockets? Mike's carries steel only. I've tried afam, renthal, sprocket specialist, rk etc. No luck.

Thanks

 

[hmusket]

Check these folks out: http://www.srs6.com/Sprockets.html

Can't give you any feedback about them, but I'm planning on trying them for a custom sprocket. Maybe someone else has used them.

Harvey