Key Features and Wargear Bits These bits are highly valuable for hobbyists looking to replace lost parts, perform conversions, or simply acquire individual components without buying a full kit. Grav-Bike Conversion: The entire bike chassis is frequently kitbashed with 3D-printed or scratch-built components to remove the wheels and convert them into Grav-Bikes (or Jetbikes), which many hobbyists feel better fits the Primaris aesthetic.
eBay