 Names of Beyblades can now be determined by their parts.For example, Storm Pegasus 105RF has a 'Pegasus' Energy Ring/Clear Wheel, 'Storm' Fusion Wheel/Metal Wheel, '105(10.5mm)' Spin Track/Track, and an 'RF (Rubber Flat)' Bottom/Performance Tip.4D system Beyblades were introduced in March 2011.