As far as I can tell, they're just Dynam Vortex heli parts repackaged at a higher price. The vented motors are, for sure. Check http://www.bphobbies.com and see for yourself. When adapting the bladecxpro shorter flybar to your CX/2, you still need the lower ball link from your old flybar. That's because the flybar he supplies is actually designed for a Vortex. Not to say the parts don't work as advertised... just know what you're actually getting. Feel free to correct me if I'm wrong on this. Neall