Spin Track

A Spin Track, sometimes just called a Track, is the height-setting piece introduced with the Metal Saga line of Beyblades, fitting the Metal System, Hybrid Wheel System, 4D System and Synchrome System interchangeably. Its printed number gives the stack height in millimetres at one-tenth scale, so a part marked 105 stands 10.5mm tall. Beyond plain height, particular Tracks add extras such as loose metal balls, downward-pressing skirts, hooked claws, protruding horns, or a switch that lets the height itself change mid-match.