Dropper seatposts are quickly becoming standard equipment on mountain bikes across the globe, and for good reason. While most droppers use traditional shift cables and housing, the Jagwire Pro Dropper Kit is the first cable and housing system designed from the ground up to ensure they work as well as possible. The included dropper-specific 0.8mm Pro Polished stainless inner cable interfaces seamlessly with remote levers and actuator arms to provide effortless cable movement. And the innovative LEX-SL housing is more flexible than standard shift housing, allowing for easier installation with internally-routed seatposts and providing smoother cable movement. With all needed parts included, Pro Dropper Kits are simple to install.