eBike Dyno and full sized Riding testing bench ('Ray's rolling road')

[Mike_V]

2021 lockdown reaction by Ray Cook mechatronic engineer ( that is: Old School )
Build a rolling road ( techie: complete test bench on My Porch ! )
the first Dyno I have seen since shown herein by Eric
"Tune and fit eBike to rider"
https://www.youtube.com/watch?v=5-oncUIcsUI