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.

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• 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