Dropper Seat Post Suitable for MTB Bike 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)  

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: