On Thu, 20 Jun 2019 13:26:21 +0000, 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?

Didn't we just thrash ths to death?
Or am I skipping into parralel universes?

Nit pick, not "invented, just a rehash"