Independent MiD 149 polished skateboard trucks. New inverted kingpin offers better grind clearance. 356 Aluminum hanger and baseplate. 4140 Chromoly steel axle. Inverted Grade 8 kingpin with 9/16" and 5.5mm Allen. Steel Shaft Nut with nylon locking insert. Weight: 409g each. Hanger: 149mm. Axle: 8.5". Height: 52mm.