Today I did my first test run and I took a short video.
It is a 4-speed power-shift and the first and second speed work nicely. The third works OK, but the fourth speed seems to take all the power. Too much friction or too much speed.
I will consider a bigger reduction between motor and gearbox.
Here is the video:
https://youtu.be/4hA-Vlfxj6M
Here are two pictures of the whole assembly:
Kerst