... RC ARF Helicopter Parts Kits For Align Trex 450 Pro Heli Upgrade Fly Carbon 3D RC ARF Helicopter ... Parts Kits For Align Trex 450 Pro Heli Upgrade Fly FeaturesNew CNC carbon frame improve ... reduce the rotation loss and makes more smooth. All kit use stainless steel linkage ball, wear resistance, anti- ... !This is not an Original Align T-Rex 450 Pro but a high quality clone of it. All ...