The KICKR CORE combines the legendary performance of the KICKR Smart Trainers with a simplified design — creating a training tool you just can't do without. The latest in Wahoo's line of smart indoor bike trainers the KICKR CORE delivers a realistic accurate and quiet indoor training experience by using the proven flywheel technology and advanced algorithms of Wahoo's smart power 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. Please note: The KICKR CORE does not include a casette or wheel block. These items can be purchased separately.