Wahoo Cycle Trainer Options COG & CLICK UPGRADE PACK (Cog and Click Upgrade Kit) This is a set of the Kickr Core Zwift One cog and remote control (Zwift Click). I recently purchased this new in December (2025), but I don't use Zwift, so I removed it and put it away. There are basically no scratches or stains, but the box is slightly torn. Installation and removal on the Kickr Core, etc., is possible if you have sprocket installation/removal tools (two tools: a sprocket remover and a freewheel remover). For details on how to install it, search for "Kickr Core Zwift One Cog Installation" etc., and you should find helpful pages. Please also check the compatible models yourself, just to be sure. *** The following is a product description *** COG & CLICK UPGRADE PACK Virtual shifting revolutionizes indoor cycling. By attaching the ZWIFT COG to your smart trainer, almost any 8-12 speed bike can be used, minimizing maintenance and easily achieving silent virtual shifting with the CLICK controller. 24 virtual gears provide you with the best ZWIFT experience in any situation. ■ COG ・14T single sprocket ・10-step chain position adjustment ・Fits Shimano/SRAM freehub bodies ・Weight 140g ・Size 103mm x 42mm ・Compatible models: KICKR V6, KICKR CORE, KICKR MOVE direct drive trainers ■ CLICK The Zwift Click controls virtual gears and smoothly attaches to any handlebar, providing a speedy and intuitive virtual shifting experience. ・Battery CR2023 (100 hours of operation) ・Weight 51g ・Size 47mm x 47mm x 13mm ・Bluetooth communication