Cold setting rear triangles was a topic of discussion about a year ago. I recall then that the concern is going from 120 to 130, not from 120 to 126 or 126 to 130. Seems to me someone mentioned that the brake bridge is the point where the seatstay will bend or weaken. I recently purchased a 120 spaced frame and had it spread to 126. The guy who spread it was also concerned about going all the way to 130 so we compromised at the 126 width. While I agree 2 mm on either side seems to be minuscule, bending a seatstay isn't a reversible action without damaging the smoothness of the stay. I would really like to understand this as it is something all of use will encounter time and time again. Is there a rule of thumb that framebuilders and pro shops use when deciding whether they can spread or not? Lou Deeter, Orlando FL