Premium high quality aluminium alloy material,high strength, lightweight and solid enough<br> To change your seat post size easily with this bushing without changing seatpost<br> Full CNC precision machining with smooth edges which won't hurt your finger<br> Suitable for MTB bike, mountain bike, road bike etc.<br> 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)<br> Specification:<br> Material: Aluminium Alloy<br> Color: Black<br> Size Chart:<br> Length: 60mm/2.36 inch<br> Size:<br> Size: 25.4 to 27.2 mm<br> 25.4 to 28.6 mm<br> 25.4 to 31.6 mm<br> 27.2 to 28.6 mm<br> 27.2 to 30.0 mm<br> 27.2 to 30.4 mm<br> 27.2 to 30.8 mm<br> 27.2 to 31.6mm<br> 27.2 to 33.9mm<br> 28.6 to 31.8mm<br> 31.8 to 34.9mm<br> 22.2 to 25.4mm<br> 31.6 to 33.9mm<br> 33.9 to 36mm<br> 27.2 to 31.8mm<br> Package Includes:<br> 1 Piece Bike Seatpost Shim Adapter<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store