Torq Servo Arm Futaba Type M2 EVO The flight endurance could be

The flight endurance could be over 250 ~ 400 runs for T-REX 800/700 3D flight

this battery will provide immense flight time with your transmitter

●Must with Autorotation Tail Drive Gear Set(H65G002XXW) ●650X Front drive gear assembly x 1

●E1 Canopy Nut x 2

Torq Servo Arm Futaba Type M2 EVO The flight endurance could beTorq Servo Arm giving the distance of 15 18 21mm from servo spline center hole. Please note that this Servo Arm can not be used with MKS X8 Servo (HBL850 880) Includes: Carbon Plastic Servo Arm x 4pcs Use for: All Standard and Mini Servos using Futaba gear type, such as: Torq Servo KST Servo Futaba servo XPert Servo MKS servo BK servo Align servo