Independent - IKP Steel Grey Inverted Kingpin Trucks (Multiple Sizes)Independent Trucks Stage 11 IKP featuring an inverted kingpin and shaft nut, clear trans black powder coated hanger, polished silver baseplate, black cushions, and silver hardware The Independent inverted kingpin improves grind clearance and can be used with either a 5. 5mm Allen key or standard 9 16" hex wrench. The innovative new Shaft Nut in the baseplate creates a rigid and durable solution to lateral movement found in most inverted kingpin