This derailleur was amazingly innovative. It is a proper parallelogram design, mounting on the drop out, with a low gear stop screw. With all this technology it came on to the market 5 years before Campagnolo’s Gran Sport.

Why is it a forgotten irrelevance? Probably because it was a single pulley design - and so doomed to uselessness.

The Super J.I.C. Course is exceedingly similar to the Super-Inax Sport in this collection, with the crucial difference that the Super J.I.C. Course is bronze and the Super-Inax Sport is aluminium. They are so similar that I have assumed that they came from the same manufacturer.

____________________________________________

1. •Brand: Super
   

2. •Country: France
   

3. •Date of introduction: 1946
   

4. •Date of this example: unknown
   

5. •Model no: unknown
   

6. •Weight: 283g including hanger plate
   

7. •Maximum cog: 22 teeth?
   

8. •Total capacity: 8 teeth
   

9. •Pulley centre to centre: not applicable
   

10. •Index compatibility: friction
    

11. •Chain width: 3/32” and 1/8”?
    

12. •Logic: low normal
    

13. •Pivots: one sprung pivot
    

14. •Material: bronze rear knuckle and parallelogram arms, steel front knuckle, pulley cage plate and hanger plate.