Off road with electric assistance bicycle violates all laws of this universe, starting from electric system and batteries abuse, electronics components abuse, and even down to mechanical issues.
What BEWO and Bafang has to do with that? Both never design a KIT for such conditions.
Neither my super chain is designed for off road use.
Electric bicycle assistance as concept aiming exclusively regular City bicycles and even MTB frames, and this is all.
Any one passing this red line, he is all alone, and does not worth any sympathy from any responsible group of people for his own troubles, issues, and damages that he is facing.
And if you wish to see that in writing you will ... Electric bicycle assistance over BMX bicycles is out of specifications activity, and there is not even one second as warranty time for a product used that way, no matter what is it.
BEWO offer two years warranty and Bafang 28 months, definably some one crashing such KIT over a mountain, he can not claim any warranty plan, and all that he will do, is to come and nag in a forum.
In what I feel victorious is that I managed to compose an electric assistance bicycle by using all latest high-end components from every aspect, and my gain is 7 years reliability, and I am tremendously happy just about that.
Bicycle industry moves ahead, components compatibility changes all the time, I am not the one who will become sponsor of training magicians, neither I will buy bicycle components every few months.
Today lots of grownup returning to bicycles because is considered as cost effective solution.
And cost effective does not translate to an unreliable bicycle with lowest quality dirt cheap parts.