Savage owners who purchase our new Savage Steel Spur Gears individually will need this Steel Spur Gear Hub to complete the upgrade. It’s precision machined from billet light weight aluminum alloy for weight savings and heat dissipation, and purple anodized for a custom look that matches other HPI factory option parts. Also included is a Slipper Clutch Pad and screws. This Spur Gear Hub is also replacement part for the Savage Steel Spur Gear Sets.