Originally Posted by
MixedRider
Have you tried a 6mm bolt? Does the eyelet look like it has a worn spot (ie. not circular anymore but more oval)?
If you can't find something that fits just right, this may be all you can do. Maybe try some putty or something around the bolt to limit movement. If you try and thread the eyelet now, if it is pretty worn from years of use with bolt movement, you may risk compromising the eyelet itself.
Nah, hole isn't worn, I think I'm the first to ever put a rack on the thing. Paint was almost perfect inside the hole. I did try a 6mm, it was too big (that is what came with the rack, and what worked on the girlfriend's bike). The only thing I could think of there is I sprayed the frame with a clear enamel, maybe that is restricting the hole a bit too much, but I think the bolt in general looks too big to fit.
Its a 1982 Miyata 610, is it possible it was originally bored for a SAE size bolt? I just assumed it would be metric. I just went out and measured it, the bolt it is indeed 5mm, and when I grab the rack and give it a good tug back and forth, I can see the bolt moving around.