Originally Posted by
unterhausen
I would have to see a picture before offering any opinions. I think you might have to ship the bike.
People use a die in a bench vise to do this, I can't imagine you breaking that.
chainstays on my Traitor Crusade
I think the cost of shipping this frame anywhere would make it totally not cost-effective. the whole bike was $600.
I made a few attempts at dimpling it. I have a bench vice but there is not enough room between the chainstays for either side of the vice to fit between them. I made a few dies out of various materials and none of them worked. I shattered a c-clamp immediately while making another attempt. most of the good dies I have seen require some welding and machine work. if I had access to the tools needed to do that, I'd just modify the frame with those rather than trying to smoosh it.