This rear mech was bought in the 1980s and had a very short working life before the tandem it was fitted to fell out of use. As a result, it's in almost pristine condition. When it was bought, SunTour had a very good reputation amongst tourists, many of whom preferred these derailleurs to the racier Shimano models.
Classic Suntour Cyclone MKII rear derailleur (Max capacity is 26 teeth on freewheel). Made in 1984. Non indexed with direct frame mounting. Condition-Fully degreased and cleaned and in very good condition.No discernable wear to pivots.All adjusters are free and jockey wheels and main springs have been regreased.