What were the differences between the 726 and 728, when they were new, then?
IIRC correctly, the difference is mainly in the components. 726 used LX (or in some cases DX), 728 used XT and 729 used XTR parts.
Didn't even notice that triangle before, but it could very well be a reinforcement that was added at some point.
@RacerX : what's the frame number on your bike? My 1992 frame is number 054xx (x-es added for security reasons, of course). If yours is much higher, the triangle could indeed indicate that they made some minor changes between production years.
i have one
will post pics when i get back from holiday
its on here ,on xaviers s-bike thread
and on his site too
ohh btw its a blue one
It's the 504 on my site indeed. I really should get back to working on the site's update, which is long overdue. Just can't get in the right mindset right now.