Agressive low profile design for safety and better shifting (Shadow Plus Technology)
It features a switch which enables heavier spring tension to reduce chain bounce.
ON-position dampens the cage and therefore a consequent chain movement for a nearly silent and stable riding experience. In the OFF-position relaxes the spring and eases the installation and removal of the rear wheel.
the RD-M786-SGS Shadow Plus rear derailleur is only compatible with 10-speed Dyna-Sys shifting components.