Two Wheeled Shocking Proof Retract Landing Gear Set For 2KG RC Airplane Description:Item Name: Two wheeled RetractsQuantity: 1 Front retract and 2 rear retractsMaterial: Metal (Silver part)Dimension: 65.8x35.1x25.1mm (2.59x1.38x1.0inch)Speed: 0.7 s\/60  @ 4.8V、 0.55 s\/60  @ 6VTorque: 1.8kg\/cm @ 4.8V、 2.0kg\/cm @ 6VPitch: !#!amp!*!oslash;4mmWeight: About 230gFlying Weight: 3KGOperating Voltage: 4.8V - 6.0VWire Length: 100mmSignal Wire Color: Brown、red、orangePlug Type: JRMax Stroke: 90 Wheel Diameter: 40mmWheel Thickness: 12mmOutside Diameter of Aluminum Alloy: 9mmHeight of Aluminum Alloy: 100mmFeature:Electric retractable landing gear、can be used directly by connecting to a servo.10 seconds automatic power-off protection circuit design to prevent overload.Double damping design fully protective gear.High quality retract system for models weighing up to 3kg.Package Included:1x Front Retract2x Rear Retracts