25mm

Product Information Material: Carbon Fiber Appearance: 3K Matte/Glossy Diameter: 25.4/27.2/30.8/31.6mm Length: 350/400mm Offset: 25mm Torque: 4 Nm Weight: Approx 180g Used: Road bike, MTB,TT bike, track bike and so on Feature: Easy to install and remove, adjustable saddle angle Package include: 1pc bicycle seat post. Carbon Fiber compares to Aluminum Alloy: Lighter in weight. Much more beautiful in appearance. Brighter in Color. Stronger in pressure resistance. Anti-Shock. Has proper elasticity, improving your bicycle’s class in minutes. Assembly Instructions: 1. Please check whether your product accessories are complete. 2. Check whether the frame diameter is standard. If your frame has been used for a long time, the diameter will wear and change, which may cause loosening after installation. Please go to the bicycle shop for help. 3. Select the appropriate size. When assembling, please ensure that the diameter of the seat post column is the same as that of the frame seat post, and the size of the seat bow is the same as the seat post column. 4. Choose a suitable length, and when installing it on the frame, please insert it above the safety wire (above 100mm from the seat post connector upward) to ensure that the seat post is better fixed on the frame. 5. Choose a suitable seat post clamp to fix it to reduce looseness during riding and strengthen safety. 6. The port of the seat post can be cut in a regular bicycle shop to meet personal preference. Precautions: 1,As the frame seat is 27.2mm, need to buy less than 27.2 caliber seat post to install 2,We produced all the seat tube diameter will be less than the size of the label 3,Seatpost Diameter is 26.8 ~ 27.2mm Used in frame seatpost 27.2mm 4,Seatpost Diameter is 30.6 ~ 30.8mm Used in frame seatpost 30.8mm 5,Seatpost Diameter is 31.4 ~ 31.6mm Used in frame seatpost 31.6mm 6,Some customers to buy the frame seatpost diameter is not standard, resulting in the seatpost can not be installed, please be sure to check，The seatpost needs to be properly secured using the seatpost clamp This product is suitable for attachment to a saddle with a hole. If there is no hole in the saddle, we recommend using a hexagon wrench to tighten the screw. Tighten the screws. Since it is made of carbon, we recommend tightening the body to support it by tightening with your hands. Cracks can occur when strong tensions occur