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  1. NDJ

    eBike hub motor rumble / grumble / rattle noise - High torque, low speed

    Hello everyone, I need some assistance with a noise problem I'm facing with my direct drive ebike motor. The issue occurs when I start off with high torque at low speeds, causing a rattling or rumbling noise. The noise will continue if climbing a hill in say PAS with limited power output. It's...
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