Tekin's PRO4 HD Motor raises the bar in off-road power. The PRO4 HD's longer 550 can and 4-pole design provide performance gains across the board and off the charts when compared to standard 1:10th scale motors. The PRO4 HD has the torque and power to level the competition. Designed with kV options for use with 2S, 3S and 4S power systems, 1:10th 4WD Short Course has never had this kind of power! Combine the Pro4 HD with an RX8 GEN2 ESC in your 4WD Short Course and hold on!