@Commie, as dancingjames was trying to deduce from you, can you tell us what rim tape you use?
It could be that you are either not using rim tape on that particular rim, or it has slipped sideways and upwards in one place, exposing the spoke-end, which will be rubbing on the naked tube.
@Commie, as dancingjames was trying to deduce from you, can you tell us what rim tape you use?
It could be that you are either not using rim tape on that particular rim, or it has slipped sideways and upwards in one place, exposing the spoke-end, which will be rubbing on the naked tube.