●T-REX metal tail drive gear assembly features high precise bearing structure and high rigid CNC processes aluminum alloy material, and therefore this refitting component is absolutely helpful for the accuracy of flying movement control and the stable of the flight.

●Shaft x 1(Φ4.5x51mm)
●Metal drive pulley(9T) x 1(Φ5.1xΦ14.2x5mm)
●Metal pulley cover x 2(Φ5.1xΦ18x5.4mm)
●Tail drive gear(40T)-white x 1
●pin x 1(Φ1.5x8.8mm)