Manufactured for HPI Savage 21 setup use, this front coil spring uses a 1.6mm wire diameter and is compatible with 115mm long dampers. It is supplied as the listed item and intended for shock replacement or as a spring option when tuning Savage 21 front suspension.
Installation follows standard shock servicing steps: remove the shock from the model, take off the shock cap and shaft, withdraw the previous spring, slide the new spring onto the shock body or perch, then reassemble and confirm travel and preload. After fitting, adjust ride height and damping to tune the vehicle behaviour.
The spring's 1.6mm wire size and fit for 115mm dampers deliver a definable spring rate that helps when refining front-end support and handling balance on HPI Savage 21 vehicles.
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