Thunder Trucks Inverted PolishedThe Thunder inverted kingpin has the threads inside the trucks, meaning that even after prolonged grinding, you will always be able to tighten or loosen your trucks. With 45% more kingpin clearance than standard Team Editions and an updated baseplate design for smoother nose and tail slides, these are everything your local Thunder fan has been waiting for. Features: Cast baseplate Chromoly solid axle Chromoly inverted hollow kingpin Exclusive low