3RACING Futaba 3.0mm V2 Single Arm Black 3RAC-H2525/BK Racing Setup  [3RAC-H2525/BK]

3RACING Futaba Single Arm 3.0mm V2(servo gear hole to ball end hole length:25mm)- Black - 3RAC-H2525/BK
Price:
USD$5.60
Brand:
3Racing
Model:
3RAC-H2525/BK
Condition:
Brand New
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Geometry-Focused Servo Arm for Tuning

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.

Fit and Control Characteristics

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.

Installation and Setup Notes

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.

The distance from the servo gear hole centre to the ball end hole is 25mm, which affects leverage and steering throw.
Verify spline engagement, check for any radial play, and confirm linkage lengths to maintain neutral steering and correct toe settings.
The 3.0mm dimension gives a predictable lever interface; when tuning, pair it with servo endpoints and throw adjustments to achieve the desired steering balance.