This Peugeot derailleur is a Simplex Prestige travelling under an alias. It looks thoroughly metal, with its cast aluminium knuckles and all - but in fact the main structural elements of the parallelogram arms are plastic - the metal is somewhat optimistically referred to as ‘stiffening’.
This derailleur illustrates one of the defining oddities of the Simplex Prestige - the more exotic (and expensive) the model - the greater the weight.
- Derailleur brands: Peugeot, manufactured by Simplex
- Country: France
- Date of introduction: 1975?
- Date of this example: unknown
- Model no.: SX410
- Weight: 272g
- Maximum cog: 30 teeth (Sutherland’s 4th edition)
- Total capacity: 26 teeth (Sutherland’s 4th edition)
- Pulley centre to centre: 46mm
- Index compatibility: friction
- Chain width: 3/32”
- Logic: top normal
- B pivot: two sprung pivots
- Materials: aluminium knuckles, plastic and steel parallelogram plates and steel pulley cage plates