Bar End Mirror Speed By Me On The By-pass....lol

I use the blue semi-setting thread lock. The red stuff can damage threads on Italian alloy.

 

Moore Speed are still Rizoma dealers but they don't necessarily have the full range in-store. They'll get it but check they've got what you want on the shelf before you go window shopping.
Rizoma Mirrors

 

Hi mate its the black 80mm with a little red ring type thingy on the stem