Features1[100mm Travel] The bike dropper post features 31.6mm diameter and 100mm travel, suitable for mountain and road bikes. 2[Internal Routing Hydraulic] Utilizing internal routing hydraulic technology, this dropper post enables stable height adjustments while you ride. 3[Enhance Appearance] The internal routing design prevents external cable exposure, enhancing the overall aesthetics of your bike for a cleaner and more professional look. 4[Aluminum Alloy Material] Constructed from aluminum alloy, this dropper post has high strength and durability, suitable for use in complex road conditions. 5[Customizable Riding Experience] Easily adjust your riding height according to your preferences, enhancing your overall riding experience.SpecificationItem Type: Bike Dropper PostMaterial: Aluminum AlloySeatpost Diameter: Approx. 31.6mm / 1.24inInner Tube Diameter: Approx. 24mm / 0.94inWire Tube Length: Approx. 151cm / 59.45inWire Core Length: Approx. 166cm / 65.35inTravel: 100mmApplication: Mountain Bike, Road BikePackage List1 x Bike Dropper Post1 xWire1 x Accessory