DISRAELI DOCUMENTS

French Patent # 835,203

French Patent 835,203 - Simplex main image

This is a wild and wacky design that is almost less of a pulley wheel based derailleur and more of a Simplex Selection fork derailleur - but with the chain tensioner attached.

I think that it never made it into production - but if your grandad has one in his loft please feel free to prove me wrong.


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