I've got an old (80's probably) Schwinn Probe that i got a few years ago, it had been used as an early mt bike. I'm converting it to a commuter and I'm building a nice rear rack that i'm going to braze to the frame. The bike is a steel-lug constructed frame.
My question is, if i braze a rack support along the seat stay, right close to the dropout, i'm probably going to melt the dropout joint, aren't I?
Is that a big problem? Is there a way to avoid that? I don't want to move my rack support too far up the seat stay, away from the dropout, because then a heavy load on the rack would be trying to fold my seat stay in half.
Is it possible that the brass in the dropout joint would melt but not really move around much, and not cause a problem?
I'm pretty sure i'm really going to want to avoid melting the brass in the original joint, but i don't know how i can do that. (I'm a beginner brazer if that isn't obvious)