Hey. I have the same issue with my 6plus. ?00? showing on the speedometer and the feint ?8? when pressing the up arrow button.
My PAS does not engage either when pedalling. Also, when pedalling, my gears switch up and down without me touching the gear shifter. I?ve emailed rad a few times already and have not heard a thing back.
Question for you. Do you have a loose connector wire that faces down and is capped! And if doesn?t have anywhere to connect to? Cause mine does.
I have another rover6plus I bought last year and it doesn?t have that extra loose connection.
Let me know if/when they get back to you. Thanks.

I just assembled my Radrover 6 Plus today and all connections are joined how they?re supposed to but both displays are not functioning. I noticed a wired connection pointing down toward the fork. It is capped but loose. I removed the cap and it is covering a 6 pronged connection. Problem is, there?s nothing to connect to.
I have another 6 plus (Bought last summer) and compared the two and my first bike doesn?t have this extra wired connection.
Anybody have this issue with there?s??