30.9 Dropper Post Internal Routing 100 mm Drop 410mm Long

These adjustable bike seat posts are hydraulic. The height can quickly and easily be adjusted up or down by up to 100mm. This is useful when a bike is used by more than one person or if you need to adjust the height of the seat while riding. To fit a 31.6 mm seat post tube we have 31.6mm seatpost shims available. These automatic adjustable bike seat posts use internally routed  cables. This means your bike will either need have an existing hole for the cable or one will need to be drilled. This MTB seat dropper post range represents extremely good value for money as they include the cabling. As well as including the cabling this MTB dropper range also comes with an activation switch. To raise the seat using the MTB dropper post simply hold the switch and remove your weight from he bike seat. Alternatively to lower the height of the bicycle seat sit on the seat while holding the switch in. As well as using these seatposts to raise and lower your bikes seat automatically you can also pivot your seat. The cradle angle angle can be adjusted -5 to 18 degrees for further comfort. To keep your MTB dropper post in good condition we recommend regularly applying grease to the collar as shown below. By doing this it will ensure a smooth adjustment of the post. 30.9 Dropper Post Specifications Model number: DP309I. Total length: 410 mm. Min insertion length: 100 mm. Max insertion length: 250 mm. Adjustable travel: 100 mm. Approximate weight: 650 grams. Cable length: 150 cm. Cable entry: Internal routing. Type: Hydraulic and air pressure sealed cartridge. Material: Aluminum 7050 alloy. Cradle angle: -5  to 18 degrees. Finish: Black sandblasted matte anode. 27.2mm seatpost droppers are also available, click here for more information.