Independent Trucks Bar trucks feature flat black hanger and baseplate with 2 color bar pad print, red cushions and pivot cup, and black and red hardware. 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. Never break, never bend. 159 and 169 models feature 6 hole universal baseplate with old and new school mounting pattern.