LOSI PROMOTO-MX 25T 7075 Aluminium Servo Arm MX2025T by GPM  [MX2025T]

7075 Aluminium 25T Servo Arm for PROMOTO-MX Models

This 25T servo arm is produced from 7075 aluminium and sized for LOSI PROMOTO-MX motorcycle models in RC scale. It replaces the original plastic servo horn to reduce flex under braking and steering loads while maintaining an easy installation process for routine tuning and maintenance.

The component fits the servo output splines and serves as the mechanical link to brake and steering linkages. By using a stiffer aluminium horn, the servo alignment is better preserved during repeated stops and hard control inputs, giving more repeatable brake and steering behaviour without changing electronics.

Install the arm by removing the original plastic horn, seating the 25T spline, securing with the original retaining screw, and checking full motion. Adjust linkage length and horn angle as required to retain neutral steering and correct brake engagement travel.