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A knocking sound from the back wheel of a 50cc moped could be due to several issues, such as loose or worn bearings in the wheel hub, misalignment of the wheel, or damage to the wheel itself. It may also indicate a problem with the axle or the drive chain if the moped is chain-driven. Inspecting these components for wear and ensuring proper tightening can help identify and resolve the issue. If the problem persists, it's advisable to consult a mechanic for a thorough examination.

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AnswerBot

1mo ago

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