Lovely, lightweight long cage Suntour ARX GT rear mech from the mid 1980s just before Accushift indexed shifting took over. ARX were specced on touring bikes and early MTBs, at just 248 grams with a 34 tooth max rear sprocket it is a minimal long cage derailleur.
- Model: ARX GT (2nd Gen) – RD-4500
- Date code A for 1984 (1985 MY)
- For friction shifting drivetrains
- Max cog: 34 tooth
- Weighs 248 grams
- Made in Japan