These are the pages detailing rear derailleurs taken from the 2004 SunRace web site. They are a touch odd. The site is designed to describe rear derailleurs from 8 groupsets, but only has meaningful content for 4 of them, the other 4 'ghost' groupsets seem to exist only as in intention.
The 4 'ghost' groupsets look like they were meant to be top-end ones. They are:
The 4 lower-end groupsets that actually have content are:
The SunRace R80 derailleur is shown in what looks like prototype form with just the word 'SunRace' on the outer parallelogram plate and with the rather complex b-pivot adjustment mechanism that was popular with Taiwanese manufacturers in the 1990s.
In other news, all the basic, low-end, pressed steel derailleurs that were SunRace's bread and butter - are noticeably absent. Even more surprising is the absence of the big-selling SunRace M30 which was, as far as I was aware, launched in 2002. All very strange.
Browse associated derailleurs.
SunRace R80 (R82) 2003?