Like road bike seatposts, mountain bike seatposts are available in various designs. All models are steplessly adjustable for angle, position and saddle height. There are rigid MTB seatposts; however, more and more mountain bikers use height-adjustable 'dropper' seatposts, most of which can be adjusted from the handlebars with a remote lever. With dropper seatposts, the saddle can be spontaneously lowered on a tricky section without having to get off and interrupt the ride. Although they're heavier and require extra cabling, they're worth it!