HPI Racing Savage X 17mm Hex Hub Conversion Set Replacement Parts for HPI Savage XOverview Upgrade your HPI Savage X with the HPI Racing 17mm Hex Hub Conversion Set. This kit converts standard wheel hex hubs to a stronger 17mm format, decreasing stress on the wheels and helping prevent stripped wheels when using high horsepower engines or pushing your Savage hard. 17mm hex hubs are the industry standard for high performance 1 8 RC, providing improved durability and broader aftermarket wheel compatibility. Key Features Converts