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The bearing of the regular bicycle is different from the bearing of the mid-drive motor. here I took a small video of 3 kinds of motors, showing the speed of different bearings: Bafang BBS02B 750w mid-drive motor; Bafang New M625 1000w mid-drive motor; Regular e-bike with rear 500w hub motor...

No, Just want to know what everyone thinks, but thank you for your comments, I will visit this link.

The frames of electric bicycles are all aluminum frames. I want to know how many people are willing to upgrade to carbon frames? Upgrade the aluminum frame of the existing electric bicycle to a carbon frame, or purchase a BAFANG M400, M600, BBS, BBSHD motor to upgrade the bicycle to an electric...

I remember in Japan the motor power is limited to 200W, is that the reason they allow children to ride an e-bike? but I definitely reject my daughter ride an e-bike, until she's 12.

yes, this communication agreement is a tiny board install in the BMS, with 2 more wires comparing with regular BMS.

Just replace a new BMS board with a communication agreement, the BMS price add extra USD15 at least, I'm trying to find cheap and good BMS, well if I found it I will let you know

Amazing video!

the technology of hub motor is very mature, bafang and other brand has a tiny difference

It is because the battery's BMS board did not install the communication agreement function, so the controller could not read the battery's information, that's why you can not see any information on DPC18's battery index.

I am a professional bafang mid motor XXXX;) there are only 2 reasons why this display did not work: 1. display is dead; 2. controller is dead. did you check the display green head on the controller? are the pins in the right position? not crooked? sometimes the wires did not connect very well...

I don't recommend you use another 5 pins green plug, "Wires from 5 pin Green Plug: yellow, black, red, blue, green" work not work on your DPC18, each color represents a signal, the same color maybe represent the same signal, and maybe not, every wire supplier has its own standard, Bafang has 5...