【INDEPENDENT】Independent trucks. STAGE XI|HOLLOW A lightweight version of the Stage XI, featuring hollow axles and kingpins. Suitable for any style, whether street or park. 7% lighter than STAGE XI 55mm height for optimal performance and wheel clearance with wheels 56mm or smaller. A356 T6 Aluminum Hanger & Baseplate T6 grade lightweight aluminum alloy designed for strength, durability, and grind feel. Hollow Chromoly Axle & Kingpin Made with the highest quality hollow chromoly steel for durability and weight reduction.