Ultegra 6500 cassette lockring

[DooDah]

A friend has given me the above cassette for a turbo wheel but he has lost the lockring. I don't have any bike shops anywhere near me so does anyone know where I can get one? Better still does anyone have one kicking around?

 

[smokeysmoo]

How about HERE

 

[DooDah]

How about HERE

Thanks for the help, but I should have been more specific. It is a 12-27T cassette, I don't know if I am Google useless, but I can't find one.

 

[Steve Saunders]

This should work ... assuming it's a 10 speed cassette.
http://www.sjscycles.co.uk/shimano-ultegra-cs-6600-lockring-and-spacer-for-12t-1zd-9802-prod30239/

 

[DooDah]

Sorry, it is a 9 speed.