-
Holding up just fine.
All the extra bits (speed sensor, brake sensors, etc) seem quite cheap and easily broken, but the motor itself seems plenty sturdy. The casing for the speed sensor broke early on - removed it and I'm just running the motor with the limitless setting continuously rather than having it cut out at 16mph. On the settings I'm using I tend to max out at around that on the flat anyway.
I haven't really gone through chains or cassettes much quicker than I'd expect on a regular non-electric cargo bike, but maybe that's because I'm mostly using the motor as a assist, rather than using the pedals as a throttle, as lots tend to do with Bafangs.
I should probably get around to doing some preventative maintenance now (which looks pretty easy, just a case of taking it apart and greasing up the internals), but I think it's as quiet as the day I fitted it.
I was actually going to ask how your Bafang is holding up? Have you had to do anything/service since install? Did you change any parts?