Hirobo HI0304021 Lepton SZM Slide Block  [HI0304021]

Lepton SZM Slide Block — Fit and Installation

RC replacement slide block HI0304021 for the Hirobo Lepton SZM rotor head, designed to engage the rotor's slide mechanism and match the original block geometry.

The slide block positions and guides the sliding components that set pitch and cyclic linkage geometry; a correct fit lowers lateral play and helps keep servo response predictable. Inspect mating surfaces and linkage clearance during installation to confirm smooth movement without binding.

Installation notes: press the block into the rotor head slot and secure with the original hardware, then check free travel across the full blade pitch range. After fitting, confirm linkage geometry and control throws before flying and re-check for any unwanted axial or lateral movement as part of routine checks.