X-Fusion Shox Hilo-125 Height Adjust Seatpost: Height-adjustable seatpost with 125mm (5") range and infinite lockdown within travel. Supplied with both a handlebar remote (stock) and on-post lever (option). Air spring system with hydraulic lockdown actuation. Double key-way design prevents lateral twist and play, plus a 10mm setback clamp with a wide range of seat angle adjustability. Anodized aluminum mast/collar/head assembly with a steel, telescoping shaft.