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  1. neologisticzand on

    Clean your drivetrain and reset your shifting as a starting point. If you don’t know how, take it to a shop.

    Also, backpedaling like that and having the rear mechnpull forward makes it look like it’s binding from trying to shift

  2. Ok, in this video, it appears that your top derailleur pulley is bent inwards, not allowing the chain to engage properly. It should be parallel to the sprockets on the cassette. How to bend it back is another story. Best to take it to a professional.

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