The Simplex Prestige rear mech is likely one of the SX 100 variants, they produced so many derailleurs in the 1970s its a bit hard to tell though! Fairly basic but nicely finished and a good price for an unused 1970s mech.
The mech is fitted with Simplex’s direct dropout bolt system which means that it must be bolted to the dropout, it does not utilise a normal threaded frame mech hanger.
- Model: Prestige (SX 100?)
- 26 teeth total capacity
- 28 tooth maximum cog size
- Suitable for 5 and 6 speed clusters with a 3/32″ chain
- Weighs 274 grams
- Made in France