Originally Posted by
human33
Bois,
i agree with you definetly. But what with all that px's & py's from the catalog which says "531frame and fork" ?
Those have
full 531 frames - i.e., both the main tubes and the rear stay tubing is made from 531. Those have the diagonal stickers.
Horizontal decals indicate 531 tubing used on the main 3 tubes (downtube, top tube, and seat tube) only. In place of the 531 stays, some manufacturers used high-tensile stay tubing and others used 4130. I believe Peugeot used the former; Grand Bois can clarify.
Is the decal puzzle easier to understand now?
For the record, the PY's have diagonal 531 decals with
red lettering, indicating 531 Special Lightweight (531SL). This was
only used on the PY's:
-Kurt