Hirobo HI2511021 Cross Member M3 x 105  [HI2511021]

Cross member for Hirobo helicopters

This cross member is an RC-scale helicopter general part intended as a structural connector for frame and component alignment. The M3 x 105 designation refers to the mounting form factor and length used where M3 fasteners are standard, and the part serves to maintain straightness and positional stability between adjacent subframes or mounts.

In practical use, the cross member acts as a fixed linkage that helps preserve geometry during setup and after repairs. It is appropriate for routine maintenance checks and minor tuning where keeping drive and rotor assemblies aligned reduces wear on bearings and transmission components. Treat the part as a replacement or spare in supply kits for model servicing.

Installation notes: fit with compatible M3 fasteners to factory mounting points, ensure mating threads are clean and undamaged, and verify alignment under static conditions before flight. Avoid over-torquing to prevent thread damage; recheck tightness after initial bench tests.