The Axis is the newest addition to the Tracker line. Keeping the classic look, we steepened the pivot angle creating a quicker turning radius, dropped the hanger height and re worked the yoke for better king pin clearance on grinds. The Axis is a perfect for most all applications; street, vert, pool, park or cruiser; this truck will not disappoint! Tracker uses 356 T6 aircraft grade aluminum, 4140 Chromoly steel axles and grade 8 kingpins in all of our trucks. The 149 Axis come with high rebound 88a bushings with excellent response and durability. Sold in pairs (2 trucks)