Taiwanese Patent # I611979/201900501 - FSA

Taiwanese patent I611979B - FSA main image

Finally this 2017 Taiwanese patent details the design of the FSA K-Force WE electronic derailleur. It is the last of a series that, working back through time, includes Taiwanese Patent # 201520126, Taiwanese Patent # 201136802, Taiwanese Patent # 201121842, a selection of Tiso patents and, arguably at the very start, SunTour's US Patent # 4,469,479 with a priority date back in 1981!

Browse associated derailleurs.

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