Material: bike Seatpost Shims is made of high quality 6061 aluminum alloy, CNC machining CD texture surface ,anti-rust and durable
Feature:Use this bike seatpost adapter, 27.2 Seat Post shim can be converted to 30.4 bike post, bike seatpost adapter shim can help you change the bicycle seat tube outer diameter to meet your needs
Size: 30.4 to 27.2 seatpost shim. 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 reducing sleeve shim matches well with most bicycles, such as MTB ,BMX ,Fixed Gear bike,mountain bike, road bike, city bike and more, you can easily adjust the diameter of the bicycle seat post, eliminating the trouble of repurchasing the bike seatpost.