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Very good idea for testing somehow more seriously than just a subjective feeling if and to what degree the BAFANG M820 has a DRAG in real life...Thank you so much for coming up with this idea @Jil ! Let's wait for the returns of eventual TESTING by those of you here that already have an ebike...

Thank you so much again for these details and advices. You’re right about « Problem to overcome is to equalize cell/PACK's voltages before connection (to avoid high balancing currents) » which us exactly what Grinn Tech in Canada has included in its product, and that hopefully I’ll achieve too...

I read part of your thread on your custom bike, because I was curious about how you had you had built your big DIY battery : I would be interested to know where or how did you find useful info to learn how to actually design yourself your battery with its case, BMS, temperature capteurs etc...

Thank you so much for sharing this impressive and very encouraging actual return of your own experience with M820 ! What you say is very comforting and confirms that M820 is efficient and VERY economic on the battery current consumption thus expending the range in km and time of e-assisted...

My next build steps : A/ sourcing a reliable seller of BAFANG M820 kit. => where did the people here that made their own custom bikes buy their M820 kit ? A priori I wish to avoid AliBaba and co I wrote to BAFANG France and they replied they sell only to OEM or bike professional builders. I...

You’re right, eBike his heavier, and much more so with bikepacking gear adding to the weight of motor + battery + charger, Nonetheless, and thank you for this, you too you seem to confirm the point I needed to get feedback from actual users of the M820 : you’ve been able to ride your bike...

Your practice and your feeling both seem to confirm that this motor M820 has NO PRECEPTIBLE DRAG when riding shut down, this is very good news, thank you very much !

Error in my former message, Please read : * Firmware and software might influence it when motor is on, BUT what I’m interested in is the actual behavior of pedaling this middrive motor when shut down.* Instead of : Also I add a comment about your wife wishing maybe to switch her M820 to a...

Yes, all my research led me to believe that too, and your way of riding is exactly my intention while BikeTouring, it’s actually the reason why I think I will go with the M820 instead of any other motor I know …. But still : drag or no drag is paramount and is caused or is suppressed by motor...

Question about freewheel resistance and clutch feel on the Bafang M820 Hi everyone, Instead of starting a new thread on my question above, I thought it might be (?) more efficient and valuable to submit my question to the little sub-community gathered by this (very interesting 👌) thread I had...