<ul><li>1,Material:Carbon fiber;Appearance:3K Glossy;Weight:Approx 210+/-10g.</li><li>2,Diameter:31.6mm;length:350mm;Offset:25mm; About Choose the Size:1.Choose Same size diameter With the original seat post. 2.Choose the size according to the inside diameter of the frame tube.</li><li>3,Easy to install. Frosting finish, exquisite workmanship, nice touch feeling. Install the product correctly, please follow the specified tightening torque (4Nm).</li><li>4,Can used on both road and mountain bikes. 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.</li><li>5,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.</li></ul><br><br>

Carbon Fiber Seat Post Carbon Seatpost for Mountain Bike MTB Seatpost 31.6 Carbon Road Bike Seat Posts for Bicycle Seat Tube Offset 25mm Seatpost for Sports Outdoor Bicycle Accessories (31.6x350mm)