Fast-paced action is guaranteed with the GraviTrax Element Looping. How fast do the balls have to be to defy gravity?

The Looping element turns the world of balls upside down for a brief moment. The balls fly through the loop at breakneck speed, overriding gravity for a moment. Combined with any GraviTrax Starter set, the Looping element turns the balls in the ball track upside down. How much momentum does the ball need to make it through the loop?
GraviTrax is an expandable, interactive ball track system for ages 8+. Build unique worlds by designing tracks and exploring how balls roll. This flexible system sharpens scientific understanding through hands-on gravity exploration. All GraviTrax lines—CORE, PRO, and POWER—work together. Endless extensions let you tinker, experiment, and build beyond your imagination.