Originally Posted by
T-Mar
I went back and checked the database. Unfortunately, not everybody with your code format provided pictures but for those that did, the serial number was on the under side of the bottom bracket shell.
Your frame is semi-aero style, in that the seat and tubes are not aero profile along their entire length. They are aero profile in the middle and round at the ends. This is a cost concession to permit the use of conventional lugs, standard front derailleur clamps and round seat posts. I've only see a handful of Shogun aero bicycles and none are an exact match for yours, though the the stay cap treatment is similar.
You also mentioned the possibility of an SR. I have one serial number for an SR aero frame in my database and it is definitely from a different manufacturer.
The bottom line is that I can't tell you which brand your bicycle was marketed under. The S/N format is consistent with that of a Shogun contractor but I haven't seen an exact match. About all can say is that it was manufactured in Japan in 1981 and late enough in the year that it could be a 1982 model.
Thank you very much T-Mar.
Although i would have loved to know what brand my bike is, i learned a lot about generation AX and asian data. I still want to restore the bike and it will probably be doing something similar to the bike in the picture of the shimano guy in the wind tunnel in the 81-83 catalogue. I really like the blueish grey of the bike in the catalogue and about the same as the Shogun Aero. Shimano aerodynamics decals will be easy to find. I wouldnt want to badge it as Shogun if was not 100% sure. But damm, to me it seems so close to it !!
Other positive point about this, i discovered this forum and really enjoying my time here! Nice to meet you all!