On 20/06/2019 14.26, db wrote:
Check this: https://www.youtube.com/watch?v=-9gQ1KRhesM

It all looks beautifully smooth etc. But I wonder, how
does it stand up to hard pedalling, like standing on the
pedals on a steep uphill? Is the force transfer still smooth
and easy?

Also the force is transmitted over a good few links in a traditional
system, not just one as in here. It looks like a good idea, but I'l
like to see it used in anger.