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    Bafang CST gear replacement - HELP!

    So I've replaced the 3 cogs that make up the gearbox on my Bafang CST 36V 500W. My motor was built in 2013 so it has the 4-keyhole clutch like all pre-2015 models. When I took it apart, this bit fell out and now when I'm putting it together again, I can't figure out where it's supposed to go...
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    S12S broke - replace with S12SH or S12SN?

    In 2013, I built a 29er MTB with a Bafang CST 36V500W (270 rpm) + S12S + 14S6P that has been working very very well. However today I negotiated a steep hill with my 8-year old daughter in tow (on a Weeride) and burnt the controller. I am pretty sure it's the controller/FETs because the motor...
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    Panasonic NCR18650PD 2.9Ah

    I've been reading so many conflicting facts and opinions on these cells, so I have to ask straight out: 1. What is the real world constant discharge rate for these? 2. Do they have higher C than the 20R? 3. Are they NCM/NMC or NCA? 4. Are these what HPC is using in their Elite line of...
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