Compatible with Countess:20(2009-11),30(2009-11),40(2009-11),50(2009-11),55 2009-10,600(2019) 2019,610(2013-19),620(2014-15),630(2014-15),640(2014-15),650(2014-15),710(2016-19),720(2016-19),etc.
Suitable for bicycles that need rear derailleur shifting function, especially in mountain bikes, road bikes and other models, it can ensure the stable connection between the transmission and the frame, and improve the accuracy and smoothness of the shifting.
Made of lightweight and strong aluminum alloy material to ensure durability and lightness.
The product includes 2 tail hooks and 4 screws. The upper end of the tail hook is connected to the bicycle frame, and the lower end is connected to the rear dial of the transmission. The installation process is relatively simple.