Shi's and SR"s derailleur is compatible. in the video, we are using GX derailleur + hanger extension + ZTTO 9-50T ULT + ZTTO 11speed chain. Weight : about 380g(ULT). The latest version 50T is changed to black color, Compared to the gray 50T version, we adjusted a bit of the shift design to optimize performance and strength.
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