Well I went to the workshop today to pick up my "ready to run" berg. The mechaninc found the drum and forks almost as new and they fitted just perfect. I took it for a ride and I heard that sound from the gearbox again. I went back, asked him to test it and after a little the bike went "glong" again! He had to remove the chain to come back to the workshop. So, if not the forks.... something else is doing it. But what?
I know dear Taffy will say "I told you to use new gear" but I think it really is something else.. I saw the drum, its corners were just fine, the wear was so little that there is no way that did the damage again so soon.
Thinking of some bent shaft ?