The 3RACING Futaba Single Arm 3.0mm V2 in black is engineered to refine steering kinematics by bringing the ball end 25mm from the servo spline. That spacing supports reduced throw and improved control resolution when tuning steering ratios.
The arm is intended to interface cleanly with Futaba-style splined servos, providing repeatable input and minimal lash when correctly installed. Its dimensions suit setups where tighter link geometry and predictable response are required.
Ensure full engagement on the servo spline and a secure fastening torque to eliminate micro movement. After installation, confirm neutral positions and adjust link lengths as needed to preserve steering geometry and alignment.