So I threw a battery in my backpack and had my first blast.
This thing ROCKS!
I love how I can get the same level of acceleration as other hub motor bikes with half the power. The pedal assist also feels really good and seems to be dialled in nicely out of the box...although knowing me I will tweak it further.
The highest power mode was a bit disappointing though, so I bumped it up to 200A phase, 75A Battery and it feels much more lively now. 8) With the battery on my back the front wheel lifts very easily so need to be careful with that one.
A few things I noticed and didn't like though...
The motor hesitates from a standstill, and if the throttle is turned too quickly the halls/phases don't line up and the motor has a real hard time till the throttle is let off and back on again. i.e. it sounds like it switches from square wave to sine wave or something but if there is too much amps the back emf confuses it? Anyway, does anyone know a way to reduce or eliminate this without sacrificing performance?
The other thing I noticed is the lag when letting off the pedals or throttle is sometimes quite dangerous. I think I really need some brake cut-off switches. Previously I've used some micro switches zip tied under the lever, but I don't want something so hideous on this bike. Does anyone have any recommendations for a cheap, but good quality brake cut-off switch compatible with hydraulic disc brakes?
Cheers