Independent Truck Co. Stage 11 Polished Standard Trucks Durable all purpose truck for any type of skateboarding. 55mm tall for optimal performance and wheel clearance with wheels 56mm and under. 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. Super High Rebound 90a Cushions 159 and 169 models feature 6 hole universal baseplate with old and new school mounting pattern. Independent Trucks are Built to Grind and Guaranteed for Life. Sizing 129 (7.6" axle): 7.4" - 7.8" deck width 139 (8.0" axle): 7.8" - 8.2" deck width 144 (8.25" axle): 8.2" - 8.375" deck width 149 (8.5" axle): 8.375" - 8.6" deck width 159 (8.75" axle): 8.6" - 9.0" deck width 169 (9.125" axle): 9.2" - 9.5" deck width 215 (10" axle): 9.75" - 10.25" deck width