I have this seatpost Although driven only 25km, but I'm already hooked. Drive every day by bicycle to work and there is unfortunately a great deal of cobblestones, potholes, etc., in short very bad stretches. The seatpost corresponds totally to my ideas and I think that me and my back the next ......... km much joy will prepare. Neoprene protection was also included, protects against dust, dirt and you do not see the same noble restraint. Dealer was AkkuRad.de, very fast delivery, everything perfect.