This GPM kit provides matched connector hardware and 1.2mm damper springs in the 113mm length specified in the product name, intended for HPI Savage 21 suspension maintenance and reliable part replacement. The components are supplied as a coordinated set to preserve suspension geometry and mounting points used by Savage 21 layouts.
Install the connectors to replace fatigued or damaged link hardware, and use the 1.2mm springs to restore damper preload and travel with predictable spring characteristics. The set supports repeatable setup and straightforward serviceability for competitive hobby use.
A technical service pack aimed at precision-minded users who require matched components for consistent suspension performance.