Height control by means of a lever even while you are riding. It uses a patented system which incredibly improves its function and eliminates the problems of conventional seatposts. The head has a zero offset, which perfectly distributes the force exerted on the seatpost, since it is transmitted in a completely vertical direction. In addition, it uses the double-bolt fastening system for the saddle. L:385mm; Ø31.6mm; Travel:125mm; Mode: Manual lever. 3D FORGED. ALUMINUM 7050.