Originally Posted by Lenton58

I don't think that it has ever been under-rated. Many of the finest artisans anywhere have constructed frames from 531 — including Italian frame makers. (I have one.) Many of the greatest road races in the world have been won on 531 frames. Reynolds 531 is a legend that is not likely to flicker and die any time soon. Moreover, and least according to my information, in recent times Reynolds has offered to extrude batches on special order. Quite remarkable considering the original tubing was introduced in the early 1930's as airframe material.