Independent Trucks Bar trucks feature flat black hanger and baseplate with 2 color bar pad print, red cushions and pivot cup. Durable all purpose truck for any type of skateboarding. 55mm tall for optimal performance and wheel clearance. A356 T6 Aluminum Hanger & Baseplate. The best lightweight aluminum alloy; heat treated to T6 condition for strength, durability, and grind feel. SCM435 Chromoly Steel Axle. Highest quality and durability available. Grade 8 Kingpin.