Hirobo HI0414389 Freya FFZ-III #60 Damper Rubber Replacement Part  [HI0414389]

FFZ-III damping sleeve

This RC-scale damper rubber is a replacement designed for the Hirobo Freya FFZ-III damper assembly. It provides the elastic element inside the damper stack and is used for component replacement, maintenance, or tuning of suspension and vibration isolation on model helicopters.

To install: remove the damper cap, examine internal pistons and seals for wear, fit the new #60 rubber sleeve, and reassemble while confirming smooth travel and correct preload. Use compatible damper oil and follow established rebuild guidelines; avoid forcing parts into place.

As a tuning component, the rubber sleeve modifies damping feel and small-amplitude response. The "#60" marking identifies a Hirobo-specified rubber hardness intended to balance compliance and rebound control; changing hardness is a standard approach to tune handling and manage vibration.