Super lightweight truck with forged baseplate and hollow axle kingpin. 10% lighter than Stage XI 53.5mm tall for optimal performance and wheel clearance with wheels 54mm and under. A356 T6 Aluminum Hanger The best lightweight aluminum alloy heat treated to T6 condition for strength, durability, and grind feel. Forged 6061 Aluminum Baseplate Aircraft grade forged aluminum allows a thinner part while still maintaining high density and strength. Hollow Chromoly Axle Kingpin Highest quality hollow Chromoly steel for durability and weight saving. Independent Trucks are Built to Grind and Guaranteed for Life.