rama wyscigowa ns bikes liar czarna ridehubThe NS Bikes Liar is a pure, race ready machine built for 4X and pumptrack riding. Constructed from ultra light AL6061 T6 + AL6066 T6 aluminum, it weighs just over 1. 9 kg and provides maximum stiffness under intense acceleration. With specially profiled, butted tubes and double pass welds in critical areas, the Liar guarantees lateral stiffness and exceptional durability. Dedicated 4X geometry features a low top tube, short rear triangle, low bottom