HIROBO HI0404521 Replacement Lever Shaft for Eagle/Freya/EX/SX Helicopter Linkages  [HI0404521]

Compatibility checklist and fit notes

This lever shaft set is an RC spare intended for HIROBO Eagle, Freya, EX and SX family models that appear in standard parts listings. The wording emphasises fit and installation context and does not claim material or performance specifications beyond the supplied information.

The part is intended to replace shafts that are bent or showing wear in collective and tail control linkages, helping to re-establish smooth pivoting and reduce joint play. Correct fitment depends on matching the replacement to original mounting positions and any retaining hardware, so examine the rotor head and control arms to confirm alignment prior to final assembly.

Basic installation guidance: remove the affected linkage assembly using your model's service instructions, transfer any reusable bushings or bearings, and fit the replacement shaft ensuring free rotation without binding. Where suitable, reuse original fasteners and then verify servo horn engagement and control rod alignment. You may need to perform final trim and balancing to restore exact control feel.