Description:

Made of High quality 6061 aluminium alloy, the bicycle adjustable seat post seat post, high strength, strong, sturdy, lightweight, durable and long lasting.
Up and down adjustable height makes it fits all kinds of height of people.
Calibration on surface helps to raise height of saddle to ensure rider a comfortable riding experience.
Suitable for most mountain bikes, road bike, track bike, MTB, BMX, etc.
How to choose the size: first you can check the diameter of the original seatpost, choose the same size as the original diameter, and second measure the inside diameter of the frame tube.

Specification:

Diameter:30.4mm/1.217 inch, 31.6mm/1.244 inch
Length: 375mm/ 14.76 inch
Color: Black

Package Includes:

1 Piece Bike Adjustable Seatpost
1 Piece Shim Adapter (Only For 31.6mm)

Note:

Only the 31.6mm one comes with a shim adapter