Hirobo HI0414389 Replacement Damper Sleeve #60 for Freya FFZ-III  [HI0414389]

Replacement damper sleeve for FFZ-III

This component is an RC-scale replacement damper rubber intended for the Hirobo Freya FFZ-III damper assembly. It serves as the elastic element within the damper stack and is used during maintenance or tuning to manage suspension and vibration isolation on model helicopters.

Installation follows standard damper rebuild steps: remove the cap, check internal components for wear, replace the rubber sleeve with the #60 unit, and reassemble while ensuring correct preload and unobstructed piston motion. Apply compatible damper oil and adhere to established rebuild practices; avoid forcing misaligned parts.

In tuning terms, the damper sleeve affects damping feel and the small-amplitude response of the system. The "#60" designation identifies a Hirobo rubber characteristic aimed at a compromise between softness and rebound control; many enthusiasts swap hardness levels to tailor response and vibration control.