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Wow, some of those trails look freakin awesome :)

Here we go again :rolleyes:

Give the guy a break, he's only after selling his bike, not forum member's opinions.

I would get your arm looked at first. It could be an acromioclavicular joint separation, which is common among cyclists who have come off their bikes. I separated mine in my right shoulder a few years ago and it does take a few weeks before you get full mobility of the shoulder again. No issues...

I agree. My SKS front mudguard has an additional extension, which manages to catch most of the crud. But there's a compromise on how low to the ground you can have the mudguard when plowing through the crap, without ripping it off :oops: Be interesting to see if anyone out there has fitted some...

I do a lot of riding along very muddy paths and tracks, and feel that my chain and chainring longevity suffers from crud that sticks to my chain throughout a ride. If it builds up too bad, then I can occasionally get some kind of chain suck, where the chain rides up and jams between the...

That looks like more of a dealer servicing device, than just the cable and software most of us are using to change user settings. It probably provides diagnostics too and is overkill for the regular Bafang BBSxx owner.

I doubt if Bafang have changed the programming system to incorporate some kind of protection, especially when the guy at the company told you that you can find out the information on YouTube. I think the next step is to change the programming cable. Either put some more heatshrink on the one you...

If you are confident in working with electronics, then you could do a loopback test on the USB adapter. See following link: https://www.trishtech.com/2015/01/testing-usb-to-ttl-adapter-using-putty/ You would just need to short out the transmit and receive pins on the USB adapter with a piece...

Yes, the wiring looks ok. You could still have a faulty USB serial adapter though. Unlikely, but possible.

The orange and brown wires are correct. They are actually joined together and allow the controller to power on when the cable is connected. The orange and brown wires DO NOT need to be connected to the pins on the USB adapter. The black, green and white wires look like they are connected to the...

If the receive wire is connected, but the transmit wire is disconnected, then you can read flash but not write. Most of these cables are originally made in China with poor quality!

Maybe one of the wires that are soldered to the USB serial adapter has become disconnected. You would need to carefully cut the heat shrink away from the USB serial adapter to see if this is true. There should be 3 wires attached to the USB pins, a ground (GND) wire, a transmit (TX) wire and a...

Where did you get the programming cable from?

@Mange-88 Does the bike actually work at the moment?

This may help: https://electricbike.com/forum/forum/kits/bafang-mid-drives/62145-cr-r209-750

I think it's not writing to flash, because the values in the 'Basic' tab are not permissible. All the values on your video in the 'Current Limit[%]' are zero :oops: As a test, try writing the 'Current Limit[%]' to 100% in each of the 'Assist Levels 0-9'. Then in the 'Speed Limit[%]' write 10%...

I dunno, I just get this feeling that for some reason, the PAS sensor isn't picking up the revolutions from the PAS disc properly, or maybe intermittently. Hope you get to the bottom of this mystery.

Mmmmm, this is a tricky one. This is a total long shot and probably a last resort, but you could try checking the PAS magnet disc on the inside of the secondary gear. When I replaced my secondary gear recently, I noticed the disc was cracked in a few places on the outer ring. Mine appeared quite...