●450 Autorotation tail drive gear 104T -Black x 1
●450 Autorotation tail drive gear bearing(Φ6xΦ15x12mm) x 1
●450 Front drive gear assembly x 1
●450PRO Short umbrella gear (Φ3.2xΦ13.8x9.7mm) x 1
●69 Tail Blade-Black x 2
●Gear Ratio 1:3.71