Hirobo HI0412235 Sceadu SD-G pitch arm replacement part  [HI0412235]

Pitch arm for Sceadu SD-G rotor heads

This is an RC-scale pitch arm intended for use with the Sceadu SD-G series rotor head assembly. It serves as a direct replacement component to restore linkage geometry and maintain predictable pitch response in hobby helicopters.

The component is designed to occupy the same mounting location as the original pitch arm, allowing replacement without modifying the airframe. During installation confirm the control linkages move freely through the full pitch range and that collective and trim settings return to neutral before flight.

In normal maintenance and tuning workflows the part is used to replace worn or damaged arms, to help re-establish correct cyclic and collective throws, and to provide a consistent pivot point for fine pitch adjustments on the bench or at the field.