Zero-G Stall Explained – Theme Park Definition

A zero-g stall is an element where the track twists 180 degrees into an inverted position, remains upside down for a prolonged straight or slightly curved section, and then twists back. Unlike a zero-g roll, which is a continuous rotation, the stall pauses the inversion, giving riders a sustained feeling of weightlessness while hanging in their restraints. It was popularized by RMC on their hybrid and I-Box coasters.