I have am Engwe L20SE, 250 w, 36v folding step thru and that doesn’t allow the PSA percentages to be changed either.
Im not bothered about going beyond the legal 25 kph, I just want the to be able to select 7 PAS settings and equal out the power settings to get a smother transition as I work up thru the PAS settings.
I asked Engwe how this could be achieved and they told me I’d need to change the current display and controller for the previous models but they no longer have any in stock.
If anyone knows how to get round this please let me know.