Imbedded sensors in the bike cause the on-screen avatar to mimic the rider's movement as well as vary the bike's resistance levels as the terrain changes, creating a real-life riding experience that is a fun and engaging way to work out! Choose from 80 different tracks and trails for constant challenge and variety. Race against the computer, other users, a set time, or your personal best! USB connection allows up to 6 users to race against each other. 63"L x 28"W x 65"H; 231 lb. Truck delivery.