@
pcb: Wow, thanks for that background story. Sounds like a mess.
I can understand how that could have been a financial disaster. For me, getting the Suntour GPX group to work satisfactorily on my Ironman was only a moderately annoying challenge. A SunRace freewheel and KMC chain seemed to resolve the minor shifting quirks. But I expected a few challenges with a 30 year old bike. I can only imagine the customer service challenges 30 years ago with new bikes and higher expectations.