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The Crank Brothers Joplin 4 Remote Operated Seatpost is an adjustable seatpost with a 75mm range. This remote version, has a remote operated drop switch that can be mounted to the handlebars. The Joplin adjustable post means that no matter how changeable the terrain, you will always be in control, drop the saddle for those rocky descents and raise it again for the lung busting ascent up the other side.