Welcome to CET Athletics! Our brand new facility in Chatsworth, CA is the home to John Cronin, five time world champion all star cheer tumbling coach/participant. Classes are available for tumbling at all levels from beginner to advanced/elite. Anyone who wants to improve their tumbling skills is welcome - cheerleaders, gymnasts, dancers, actors, parkour, free runners. In fact, anyone who wants to learn how to flip or do a cartwheel is welcome!