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Hi Hi Mike, As d8veh says they come out with the circuit board, hopefully with just a bit of gentle and even prising. If they are a bit stiff, chop them off, remove board and leaver out. No idea why they fail.... Probably just low quality control standards. Hope all goes smoothly. Great...

Tested then Silicone applied.

Hi tommie, RS Components online. Part Number 8223771 90p each delivered!!! I ordered 6, just in case I messed it up, but only needed 3. The original ones weren't particular well installed, however if you've got a good soldering iron with a fine tip (or in my case a mate) it's not a difficult...

Well... I'm delighted to say that replacing the Hall sensors cleared the fault and the bike has now been reassembled and is working. All I need is a break in the weather and I'll be heading to the trails for a shakedown.... Can't wait..

So.... Did a rather basic test of the Hall sensors. This involved using a 9v battery to power the hall sensor circuit board in the motor core. The armature was removed and a magnet was used to "trigger" the hall sensors in turn and the output signals were monitored. The results showed that all...

Thanks both for your replies. I have dismantled the drive unit to access the hall sensors and board. All looks fine. There is quite a bit if silicone on the sensors themselves, but I don't see that it would be the cause of the problem. I'm assuming that either the board and or a sensor(s) is...

Hi, I have two bbshd kits that I bought from China. When the first one arrived I installed it without any problems and the bike performs really well. So I ordered a second kit (this one for a 100mm bb) and before installing I took the opportunity to grease both motor units with mobilgrease...