3RACING 3RAC-HKD26/LB Racing Grade 2.6mm Double Aluminium Servo Arm for Ko Propo Sanwa  [3RAC-HKD26/LB]

Track-Oriented 3RACING 3RAC-HKD26/LB Servo Arm

The 3RACING 2.6mm aluminium double servo arm in light blue is intended as a performance horn for Ko Propo and Sanwa setups. It is machined to deliver predictable motion and repeatable steering input for setup tuning.

Application and Setup Considerations

Engineered to match Ko Propo and Sanwa splines, this arm gives a secure interface and consistent throw. Use the dual-arm geometry to refine steering ratios without changing servo endpoints drastically.

Material and Mechanical Benefits

Constructed from aluminium to balance rigidity and mass, the arm reduces flex at the horn while limiting additional load on the servo. The full contact on the spline minimises slop and enhances feedback.

Fitting and Maintenance for Performance

Fit with correct torque values and confirm alignment at neutral, then adjust endpoints and sub-trim for precise centring. Regular inspection of spline engagement and fasteners supports consistent lap-to-lap performance.