i hope you donÂ´t think iam a little child who is angry because you slam about my bafang, and now iam froward
for overvolting and over-ampering setups there are for sure more robust motors and of course: on a gearless motor there are less parts that can go wrong
i only wanted to state, that a bafang - used in the way it was designed for - is not useless for e-bikes..
here in Autria is a importeur who sells the geared bafangs to single persons and to companies, and he said in the forums,
that he had no bafang with failed gears sofar, and he has sold over 1500 units..
he works close with the manufactor, he visits them regulary in there factory
BUT: here in europe the motors are used with 24Volt and for power with 36Volt
there are only few people who are "nuts", and power them with even 48Volt and 15A controller...
well.. this gear-stripping-problem is a US-problem, you see only in US-Forums...
(72V tunings (more than 50Volt is not allowed in europe because the law says, that it starts to become life-dangerous over 50V), or controllers with 30A)
so: 72V, 30A ==> there are no such bikes here
(hell, the most sold bike here are the Swiss Flyers (Panasonic drive) with 250Watt)
oh: he also said, that the gears should hold longer than the free-wheel-unit, the free-wheel unit fails first...
it should be replaced after 30.000km
so, my 1200km are maybe not significant,
but at least: in the German Pedelec-forum are some using the bafang, with some tousands of km and i have not read of one gear-failure sofar