450Pro Flybarless RC Helicopter Stand Landing Frame for Align Trex 450 Pro Heli
(The Flybarless Rotor Head to replace the Flybar Rotor Head). Weight :450g. Drive Gear Ration:1:10.7:4.24. Tail Drive Gear:25T. Autorotation Tail Drive Gear:106T. Main Drive Gear:150T.