SunTour Iwai Wide (2nd style)

SunTour Iwai Wide derailleur (2nd style) main image

This is a pleasantly distressed, early, example of a drop-out mounting SunTour Wide derailleur manufactured for SunTour by a company called Iwai. The small enamel badge riveted on just below the drop-out says ‘SunTour Iwai’.

The underlying design remains a version of a Huret model. As ever, though, this Suntour is a well executed example of the genre.

As they might say in a Jaeger catalogue, the autumnal tones look well on a derailleur of a certain age.

  • Derailleur brands: SunTour manufactured by Iwai
  • Categories: SunTour - pull-chain models
  • Country: Japan
  • Date of introduction: 1955?
  • Date of this example: unknown
  • Model no.: unknown
  • Weight: 318g including integral hanger plate but excluding external chain tension spring and chainstay clamp.
  • Maximum cog: 28 teeth?
  • Total capacity: 28 teeth?
  • Pulley centre to centre: 70mm
  • Index compatibility: friction
  • Chain width: 1/8”?
  • Logic: low normal
  • B pivot: none
  • P pivot: sprung
  • Materials: steel
SunTour Iwai Wide derailleur (2nd style) additional image 01