KS LEV Dropper Seatpost Material: [post, collar, upper clamp, remote clamp] aluminum, [lower clamp, remote lever] carbon, [clamp bolts] titanium Diameter: 30.9 mm, 31.6 mm Length: [100mm travel 335 mm, [125mm travel] 385 mm, [150mm travel] 435 mm Offset: 0 mm Travel: 100 mm, 125 mm, 150 mm