Originally Posted by
Hobbiano
Huh? Sounds interesting but I don't understand what you're saying here. Would you mind trying to explain your method again? I do know what coupling nuts are. Thanks.
the bottom bracket shell is only 1.3" ID, so a string of coupling nuts gets you to the dent region, held together with allen key threaded set screws, extend them down and gently tap away, it was easier for me as the chainstay was round/oval/round.
they are removed one at a time.