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2 Comments

  1. Might be scoring from imperfections in the seat tube. There’s nothing much you can do about it now as it has already happened.

  2. Otherwise_Tomorrow25 on

    Happens if you dont fully losen the seatpostclamp and pull the post upwards. The Carbon paste then grinds ur steatpost. You can even see then rocky motion (left-right-wiggle) you did to pull it upwards

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