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Add convenient remote-shifting capability to your TRX-4M high/low two-speed transmission with this shifting servo. The servo replaces the manual shifting lever on the transmission and plugs into channel 3 of the brushless ECM. Note: shifting servo requires installation of the 9891 two-speed transmission, 6250 TRX-4M brushless power system, and a 3-channel 6517 TQ or 6529 TQi transmitter (all sold separately).
This product was added on 04/07/25 by JM.