Originally Posted by
unterhausen
Oval stays have a lot of slop in angle relative to the seat tube, and it's not very hard to bend the sockets sideways a little. Even for a fairly radical s-bend stay, it doesn't take much.
In the picture I was opening up the angle to the ST on track bikes. I agree, width isn't generally too difficult get a couple extra degrees and that can take you from 120 to 135 even. I do like having these bars as anvils inside the sockets to tighten everything back up before brazing. I use an aluminum bar with blunt end as a punch.