Awesome!

Aircooled beat you to it but it's still great to watch.

Nice tensioning system

The tensioning is done by the generator pulley. It's two seperate pieces that when placed together have a V-groove profile. Shims are removed from between the two pieces that allows them to sit closer together and the belt rides higher out on the pulley.

Kinda visible on my motor here

It's actually a pretty ingenious idea. Its easier to appreciate the German engineering if you work on one yourself. Unlike conventional tensioners there is nothing to fail...

Hi !
I've just visited this forum. Happy to get acquainted with you. Thanks.