Zwift Cog and Click Upgrade Pack Description: Experience virtual shifting on Zwift direct drive trainers with the Cog and Click Upgrade Pack. Enjoy seamless virtual shifting and a smooth ride with a simple single cog setup that can be adjusted for optimal chain alignment. Compatible with almost any 8-13 speed bicycle, easy to activate virtual shifting works without changing the actual chainline for maximum reliability. Zwift Cog even comes with a chain guard for mess and maintenance-free riding to keep your drivetrain smooth and secure, so you can focus on elevating indoor training sessions to the next level. Wireless controllers offer remote operation of the 24 virtual shift levels and enable rapid input over in-app menus and prompts. Features: Virtual shifting upgrade kit for direct drive trainers 24 silent, smooth virtual gears to shift through Includes controllers for operation of virtual shifting and menu navigation Shimano HG freehub body compatibility for most 8-13 speed bikes Adjustable sprocket alignment for optimal chain alignment Built-in guard keeps chain in place Quick mount to any location on drop bars, flat bars, or aero bars Specifications: Teeth Count: 14T Single Sprocket Power: CR2032 Coin Cell Battery Drive Type: Shimano HG Communication: Bluetooth Battery Life: 100+ Hours