tail performance- Solid tail gear box and ball bearing grips for precision flying. High strength carbon fiber tail stand bar. Tail rotor control set with dual bearing, features CNC control piece and smooth structure design, get smooth pitch travel.

Hmm, well you're not really going anywhere if the main shaft and head assembly are not attached to the heli, it would have been better said "you won't fly without this"- Tail mounted rudder servo provides superb tail control- Rigid torque tube tail drive system for max. But anyway don't go leaving the main shaft in there just yet, just make sure it slides in then set it aside.