After a long wait, delivery truck finally showed up.
After so many hours spent on forums, reading about theory, that’s a pleasure to look, touch, weight, feel…
For the time being, it’s still static and not really electric as the battery is traveling somewhere.
To keep thing simple, I’ve ordered from a single supplier. My objective about electricity/electronic is “plug and play”
On the E-Flex, there is a minimum motor axle length, to go through the arm (>40mm), so I had not much choice, 6880 or 5570 (no 63xx)
I have a bit of work to install those tiny things comfortably in the Flex belly, while waiting for the battery to knock at my door.