
How one Chinese e-bike motor maker is building quieter electric bikes

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Bafang, a leading Chinese e-bike motor manufacturer, is focusing on reducing motor noise to enhance the riding experience. A quiet motor contributes to a refined feel, while noisy drivetrains detract from it. The company employs a system-level engineering approach to tackle motor noise, addressing issues from electromagnetic forces to motor mounting in the bike frame. The noise primarily stems from electromagnetic noise, which creates a high-frequency buzzing sound under load, particularly at higher assist levels.
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