The KICKR CORE is the latest in Wahoo s line of smart indoor bike trainers. It delivers a realistic, accurate, and quiet indoor training experience by using the proven flywheel technology and advanced algorithms of Wahoo s legendary indoor bike trainers. The KICKR CORE indoor trainer is built with the durabilty to withstand all of your indoor training sessions and no other brand of smart trainers has more apps and software training options, including Zwift and Trainer Road.