3RACING 3RAC-HKD30/SI Silver 3.0 mm Double Servo Arm - Ko Propo and Sanwa  [3RAC-HKD30/SI]

Dial in control with the 3RACING 3RAC-HKD30/SI aluminium horn

For tuners wanting steadier response, the 3RACING 3.0 mm Aluminium Double Servo Arm is a practical parts upgrade. It is compatible with Ko Propo and Sanwa servo interfaces and comes in a neutral silver finish.

Stiffness and fit for everyday running

The aluminium build keeps weight low while improving rigidity over standard plastic arms. At 3.0 mm thickness the arm resists bending, helping to maintain precise servo movement under load. Fitment is aimed at Ko Propo and Sanwa servo splines.

Suited to a range of RC machines

Whether running a tuned stadium truck or a lightweight touring car, this arm gives dependable steering and throttle feel. Its simple compatibility makes it an easy swap for routine upgrades.