The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. 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. Features The whole series of products are ergonomically designed with 2 bolt clamps, which can provide a safe non-slip saddle position and compatible with more saddles. Adjustable saddle angle, easy to install and remove;100% full carbon fiber, ultra-light, durable, comfortable, tough, and high-strength alloy accessories provide safety protection for riders.Light-weight: Only about 210+/-10g; Offset 25mm; Adjustable saddle angle.Diameter: 27.2/30.8/31.6mm; Length:350/400mm.Usage: Road/MTB. Assembly Instructions 1. Please check whether your bike parts are complete. 2.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. 3. Choose a suitable length, and when installing it on the frame, please insert it above the safety wire. 4. The port of the seat post can be cut in a regular bicycle shop. Precautions 1, Our seat tube diameter will be a little less than the size of the label. 2, Seat post diameter is 26.8 ~ 27.2mm Used in frame seat post 27.2mm. 3, Seat post diameter is 30.6 ~ 30.8mm used in frame seat post 30.8mm. 4, Seat post diameter is 31.4 ~ 31.6mm Used in frame seat post 31.6mm. 5, Some frame Seat post diameter is not standard, which means that the seat post can not be installed, please check that the seat post has to be properly secured with the saddle clamp. Customer Shows Install the product correctly, please follow the specified tightening torque (4Nm). Since it is made of carbon, we recommend tightening the body to support with your hands. Cracks can occur when strong tensions occur. Any quality problems please send me photos, we will try our best to help you. Have customers noticed any discoloration or fading of the bike seat post finish over time? The bike seatpost is made of carbon fiber, which will not be discoloration or fading over long-time use. Is it suitable for rough terrain or just smooth roads? How about long-distance cycling events or tours? The carbon seatpost desigh with high performance carbon fiber, can be suitable for both rough terrian and also smooth roads, and also long-distance cycling events and tours are ok. Is installation difficult? Does the bicycle seat post installation require special tools or expertise? No, it's not difficult to install, using a torque wrench when installing this carbon fiber seatpost, and following the specified tightening torque of 4Nm. Are there any reports of the seatpost slipping or loosening over time? There are few reports of the seat posts slipping or loosening over time, as long as the seatpost fixed well when install. Does its clamp mechanism allow easy angle adjustments over time? Offset design require special tools for adjustment? Yes, the seat post clamp mechanism can be easily angle adjustments over time, it don't require any special tools for adjustment, using torque wrench is ok. Related Product Recommendations Bicycle Seat Post Add to Cart Bicycle Saddle Add to Cart Water Bottle Cage Add to Cart Integrated Handlelbar Add to Cart Road Handlebar Add to Cart MTB Handlebar Add to Cart Carbon Bike Spacers Add to Cart Customer Reviews 3.9 out of 5 stars 287 4.2 out of 5 stars 128 4.5 out of 5 stars 176 4.2 out of 5 stars 21 4.4 out of 5 stars 85 4.5 out of 5 stars 654 4.4 out of 5 stars 36 Price $39.00$39.00 $31.99$31.99 $21.99$21.99 $115.99$115.99 $65.99$65.99 $43.99$43.99 $15.99$15.99 Carbon Fiber ✔ ✔ ✔ ✔ ✔ ✔ ✔ For Road ✔ ✔ ✔ ✔ ✔ ✘ ✔ For MTB ✔ ✔ ✔ ✘ ✘ ✔ ✔ US Stock ✔ ✔ ✔ ✔ ✔ ✔ ✔ Appearance Matte/Glossy Matte/Glossy Matte/Glossy Matte/Glossy Matte Matte/Glossy Glossy