Super-Inax Sport

Super-Inax Sport derailleur main image

This derailleur was amazingly innovative. It is a proper parallelogram design, mounting on the drop out, with a low gear stop screw and extensive use of aluminium. With all this technology it came on to the market 8 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-Inax Sport is exceedingly similar to the Super JIC Course in this collection, with the crucial difference that the Super-Inax Sport is aluminium and the Super JIC Course is bronze. They are so similar that I have assumed that they came from the same manufacturer.

  • Derailleur brands: Super-Inax, manufactured by JIC?
  • Country: France
  • Date of introduction: 1942?
  • Date of this example: unknown
  • Model no.: unknown
  • Weight: 241g including hanger plate
  • Maximum cog: 22 teeth?
  • Total capacity: 8 teeth
  • Pulley centre to centre: not applicable
  • Index compatibility: friction
  • Chain width: 3/32” and 1/8”?
  • Logic: low normal
  • B pivot: sprung
  • P pivot: none
  • Materials: aluminium rear knuckle and parallelogram arms, steel front knuckle, pulley cage plate and hanger plate.