The 3RACING 3RAC-HKD26/RE is a 2.6mm red anodised aluminium double servo arm engineered for Ko Propo and Sanwa servo interfaces. Its rigid aluminium profile reduces mechanical compliance, delivering more direct transmission of servo commands to the steering linkage.
This arm is intended for installations that match Ko Propo and Sanwa spline and mounting specifications. The aluminium construction resists deformation under high steering loads, preserving geometry and alignment in competitive tuning environments.
Upgrading to the 3RAC-HKD26/RE minimises arm flex and improves repeatable control inputs, which aids precise steering calibration and consistent behaviour during aggressive cornering. This makes it a pragmatic choice for drivers refining setup for lap-to-lap consistency.