DISRAELI GEARS

Supjam

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On the one hand this is a basic steel derailleur, an essay in cheap and cheerful pressings. On the other hand it has a certain class. The pressing are clean and precise, the plating is even, the bolt heads are well machined and the pulley wheels are accurately moulded. Finally the basic design with two rear-facing adjustment screws is clear and well thought-out. Humble but decent.


  • Derailleur brands: Supjam
  • Country: Argentina
  • Date of introduction: 1985?
  • Date of this example: unknown
  • Model no.: unknown
  • Weight: 285g including the hanger plate
  • Maximum cog: 28 teeth (guess)
  • Total capacity: 28 teeth (guess)
  • Pulley centre to centre: 45mm
  • Index compatibility: friction
  • Chain width: 3/32"
  • Logic: top normal
  • B pivot: unsprung
  • P pivot: sprung
  • Materials: steel
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