9MM replaceable axle pin half shaft
this helicopter runs on a 4S 5000mAh battery and can stay up for over 20 minutes per charge
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4G 6CH Remote Control(With analog interface + mixing control function)
Switch between slow
CDI Igniter for RETROL Engine Models B01, B02, LD-A1, 1110, 1140, 916 Compatible Engine:for LD-A1 9MM replaceable axle pin halfIMPORTANT ORDERING NOTICE: Please select the correct engine model from the dropdown menu before adding to your cart. Different RETROL models use different ignition contact points, and the variants are NOT interchangeable. Double check your engine model to avoid buying the wrong part! Voltage 1. 5V (Specifically optimized for B01, B02, LD A1 series) Compatibility RETROL B01, B02, LD A1, 1110, 1140, 916 Key Feature Custom contact point designs per