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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1. •Brand: SunTour manufactured by Iwai
   

2. •My category: SunTour - pull-chain models
   

3. •Country: Japan
   

4. •Date of introduction: 1955?
   

5. •Date of this example: unknown
   

6. •Model no: unknown
   

7. •Weight: 318g including integral hanger plate but excluding external chain tension spring and chainstay clamp.
   

8. •Maximum cog: 28 teeth?
   

9. •Total capacity: 28 teeth?
   

10. •Pulley centre to centre: 70mm
    

11. •Index compatibility: friction
    

12. •Chain width: 1/8”?
    

13. •Logic: low normal
    

14. •Pivots: one sprung pivot
    

15. •Material: steel
    

0074/C