3RACING 3RAC-HKD26/PU Race-Oriented 2.6mm Aluminium Double Servo Arm  [3RAC-HKD26/PU]

3RACING 2.6mm Aluminium Double Servo Arm For Ko Propo/Sanwa - Purple - 3RAC-HKD26/PU
Price:
USD$3.50
Brand:
3Racing
Model:
3RAC-HKD26/PU
Condition:
Brand New
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Race-Focused Servo Arm for Accurate Steering Input

The 3RACING 2.6mm Aluminium Double Servo Arm in purple is manufactured to support precise steering geometry on Ko Propo and Sanwa servos. Its 2.6mm aluminium profile reduces deflection and improves repeatable response during high-load cornering.

Compatibility and Mechanical Fitment

Designed to align with common Ko Propo and Sanwa servo splines, this double arm offers consistent centre return and less mechanical play compared with stock plastic arms. Confirm spline type and clearance before installation for optimal tuning.

Material and Performance Considerations

Aluminium provides clearer load transfer from servo to linkages, helping drivers tune end-point and dual-rate settings with predictable behaviour. Use appropriate fasteners and torque to maintain alignment without deforming the servo output.

What spline types should I confirm before fitting?

Check whether your Ko Propo or Sanwa servo uses a 25T or compatible spline pattern and that the shaft diameter matches the arm bore to avoid play or binding.

Which fastener torque is recommended?

Use manufacturer recommended torque for the servo output screw to secure the arm while preventing stripping. If unspecified, tighten to a firm hand feel and recheck after initial runs.

How does this arm affect tuning adjustments?

The reduced flex of the aluminium arm yields more direct steering feedback, which can change perceived endpoint and dual-rate settings. Recalibrate trims and end points after installation.