GANOPPER 31.6 to 30.9mm, Aluminum Mountain Bike Seat Post Adapter, CNC Machined, 100mm Length, Black

Features

• Material: bicycle Seatpost Shim is made of high quality 6061 aluminum alloy, CNC machining CD texture surface ,anti-rust and durable
• Feature:Use this bike post shim, 30.9 ID Seat Post shim can be converted to 31.6 bike seat post, bike seatpost shim can help you change the bicycle seat tube outer diameter to meet your needs
• Size: 31.6 to 30.9 seatpost shims. Length: 100mm.
• Tips: Please check your bike frame seat tube outside diameter. Measure the inside diameter of your old clamp. Or measure the outside diameter of your seat tube (on your bike frame). Then make a right choice. - - -Because of hollow design，In the process of transportation are squeezed may be out of shape，Please kindly exchange one
• Application: Bicycle Seatpost reducer matches well with most bicycles, such as MTB ,BMX ,mountain bike, road bike,and more, you can easily adjust the diameter of the bicycle seat post, eliminating the trouble of repurchasing the bike seatpost.