Chain tensioner installed; only one word: amazing!
To be honest, I believed the noise "before the cure" shown on Your website, was from an almost-dead OEM tensioner, but...
My OEM tensioner was still in good shape, and the noise was the same as brand new; now that noise is gone!
Remaining only 30% about valves & co: a Jap BMW!
It's unbelievable how much noise is just from that detail!
Anyway: this is not only to say thanks once more...
I'm going to write a review on an italian BMW forum (www.quellidellelica.com - 59000 members) and a FB group (F800 GS Italia - 2200 members).