1 Set Bike MTB Dropper Seat Post Internal/External Cable Routing 30. 9/31. 6mm

Specification:
Color: Matt black
Cradle angle: -5°~+18°
Travel distance: 125MM(External), 150MM(Internal)
Diameter: 30.9mm, 31.6mm
Length: 475 mm(External),  485MM(Internal)
Offset: 3mm
External Cable length: 120cm
Internal Cable length: 170cm(you can cut it if too long for your bike)  

Features:
Saddle clamp angle can adjust in -5 degree to +18 degree. Clamp offset 14mm.

You can adjust the height of the saddle according to your height. The height of the saddle can be adjusted with a length of 10cm
to avoid the soreness of the back and shoulders caused by the riding posture.

The angle of the chuck is adjustable, so you can find a comfortable saddle angle according to your preferences.

Easy Installation- remote lever, cable, housing components, manual instructions included for convenient mounting

Suitable for most mountain bikes, road bike, fixed gear bicycle, downhill bike, track bike, MTB, BMX, DH, etc

Package Includes: 1 Set Bicycle Remote Seatpost

Note: How to Choose the Size:

1.Check the diameter of the original seatpost,choose the same size as the original diameter.
2.Measure the inside diameter of the frame tube.