Beautiful. This late 70s, early 80s period of parts from Suntour is probably the best, and the first generation Superbe Pro rear mech is no exception. Superbe Pro was the designation given to the top of the range parts through the late 70s and 80s, bumping plain old Superbe down a level. This rear derailleur is super light at just 170 grams and is short cage for a maximum large sprocket with 23 teeth. This is an early model of the 3100 version as it has a 1976 production stamp for the 1977 model year, it has a few little marks from storage but has never been installed and used.
- Model: RD-3100
- Short cage
- Total capacity of 22 teeth
- Max cog size: 23
- Weighs: 170 grams (!)
- Dated 1977
- Made in Japan
- In the original box