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  1. O

    Gng kit shaft problem

    My gng was good at first. MY setting is 19cells battery(fully charged 77V) and max amps is 38amps. So I used 2900w on my gng kit. It's chain drive kit of gen 1.1. But some time I had a trouble. When I took 6~8 spd sproket, freewheel moved backwards and sounded tapping like photo. I can really...
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