Help Identifying what derailleur hanger I can use I bought this frame and have no idea what type of derailleur was on it.  I have the back wheel and it has 8 gears. I feel this is a legitimate question and none of the other similar questions answered my question.  Please don't close this question I really need help with this.  Is there one I can use that is held on by the axle?  The question that was identified as a duplicate did not show which type of hanger or where I could buy one.



Thanks,
Paul
There is this type of adapter, which requires a screw to hold it in position. The screw in the adapter should be attached to a cam nut that syncs into the end of the dropout.