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Swashplate to Main Rotor grip arm
Linkage Rod *2,m2.6 Ball Link*6
XL52A19 Servo Horn For 520/550
XL52H06 Feathering Shaft
XL52T11 Tail Control Link 550/700
XL52B24-2 106T Heavy Duty CNC Main Gear 12MM
XL52H13 Servo Linkage rod Set