B189 Bicycle Seatpost
Product name:Extra Long 550mm*31.8mm Aluminum Alloy Bike Seatpost B189 The seatpost made of high strength aluminum alloy 6061,manufactured by integral forging. Easy Installation:it is easy to install the saddle on this seat post. There is a safe line mark on the seat post.Please insert at least above the minimum safety line. By extending the length of the saddle support column,it is possible to eliminate the low seat position that is commonly found in small diameter bikes,and a comfortable ride posture can be secured even with a long body rider. By adjusting the seat post position where the foot stretches when the pedal is at the bottom dead center,it becomes possible to drastically increase the pedaling efficiency. By raising the saddle height,the forward leaning riding position born,reducing air resistance (drag). Material:6061 aluminum alloyDiameter:31.8mmLength:550mmThickness of the tube:3mmWeight:about 330gPackage included:1 X Seat PostSuitableļ¼folding bike,BMX,electric bike..