This tubing was the odd man out in the Columbus range of tube sets. All of the other sets such as SL. SLX, TSX, MS during the 80s and 90s were made from chrome-molybdenum Cyclex steel, the Cromor set was made from chrome-molybdenum..but the AElle was made from carbon manganese. Reynolds 531 was made from molybdenum manganese.
There were two types of Aelle - the basic AELLE plain gauge - with 0.8 wall thickness for the main tubes and then there was the AELLE R range that was double-butted. The PG series weighed in at 2345 gms a set (usually calculated on a set to build a 55cm frame) and the DB set weighed slightly less at 2257 gms. These weights put the series not far off the weight of a set of Reynolds 531DB
There used to be a set called ZETA that was the base set of the range, until the Cromor set arrived..a copy of Reynolds 501 ..or was that the other way around..both of which were launched as rivals to Ishiwata Magny-V. At that point the ZETA was dropped. Aelle continued then to be the base set until the very useful GARA set was introduced.
Norris Lockley - Settle UK