1949 Campagnolo Gran Sport
One of the First Tulio Campagnolo is generally credited with inventing the first parallelogram derailleur. While there is strong evidence he was beaten to the punch by others, there can be no argument that Tulio and his company ushered in the era of the modern derailleur with the 1949 introduction of the Campagnolo Gran Sport. And even if a derailleur by a German company, Nivex, did predate the Gran Sport, this derailleur mounted to the frames chainstay in contrast to the Campagnolo, which like almost all modern derailleurs thereafter, mounted to the rear dropout. To this day almost all derailleurs utilize the parallelogram design and Campagnolo is still the world's premier bicycle component manufacturer. To be clear, there were other gear changers and derailleurs before the Gran Sport, such as the plunger-type, and I will discuss some of these in future posts. My personal pre-Gran Sport favorite is another Campagnolo product, the death defying Campagnolo ...