Suntour arx GT Long cage

[cipolinni]

Can anyone help please
Here I have a Suntour arx GT
I cannot find any reference to this rear mech
Here are photos for reference

I'm trying to sell this

 

[Iwasgoodonce]

Mentioned here at least.

Wanted - Suntour ARX GT long cage derailleur

Hi, I'm after a Suntour long cage derailleur that will take a 32-tooth freewheel. This is for a 1985 Raliegh Clubman therefore the original derailleur is a Suntour ARX, I'd like something similar. Thank you. Howie

www.retrobike.co.uk

And

SunTour aRX GT derailleur (4500)

In response to Shimano’s radical 600 AX aerodynamic groupset, SunTour transmuted the Vx series into the aRX series (the name being something to do with aero and x). At first this seemed a brilliant move - the aRX series looked smooth and aerodynamic and modern, but was simple and practical...

www.disraeligears.co.uk