French Patent # 889,531 addition # 56,348 - Huret

French Patent 889,531 addition 53,648 - Huret main image

The subject of this patent is a derailleur with the geometry and operational attributes of the Huret Dural Competition. However the body of the derailleur is not made of caste aluminium (like the Huret Dural Competition) but constructed with tempered steel rods (like Huret's 'piano wire' derailleurs - the Huret Course Compétition and Huret Route Touriste).

I think that this 'piano wire' version of the Huret Dural Competition was never actually manufactured.

Browse associated derailleurs.

Huret Dural Competition derailleur thumbnail

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