Suntour Cyclone three pulley rear derailleur??

PerB

Old School Hero
I came across this when I was looking for something else at Velobase.

Whats the idea about this design? is it any good?
It looks cool, but I have not seen any in real life, I bet it was not a huge success.

4787B46B-B50D-425B-BB8C-AF7CCA7340C1.jpeg
 
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