As a collector of vintage Fuji bicycles you sometimes run into a few less common model names on parts. One of the most challenging to search for is the СУПЕР Rider seat pillar (post). More appropriately named Hupel Rider, this seat pillar was standard on the high-end Fuji bicycles ( Newest, Finest etc.) in the 1970’s.
A fellow over on Flicker has a nice little write up on the Hupel rider. He states that the “СУПЕР” stands for super in Russian. Type that into the Google translator and sure enough, that’s what it comes up with.
Scott Ryder, the most famous of vintage Fuji collectors mentions in an older BikeForums.net thread that the Hupel (Super) Rider was made by Y.F.C. What exactly Y.F.C stands for is still a mystery, but they are well known for bicycle saddles.
Try searching for СУПЕР on ebay; yeah, good luck with that… Better yet, find one in 26.8mm contact me right away!