A new Alpinist seatpost has been developed for the Aethos. The seatpost diameter is 27.2mm and the seatpost clamp is 30.0mm (S174700006).

28121-3700ROVAL ALPINIST CARBON POST 27.2 X 300MM, 12MM OFFSET
28121-3705ROVAL ALPINIST CARBON POST 27.2 X 360MM, 12MM OFFSET


The minimum seatpost insertion from the top of the seatpost collar is 75mm.  The maximum insertion is 215mm.  If the proper saddle height can't be achieved with the stock seatpost within the acceptable range, a shorter or longer seatpost should be used.

Image of seatpost -click to enlarge


The Alpinist seatpost uses a micro-adjust two-bolt system to clamp the saddle rails.  Replacement clamps and hardware are available (S204900004).

Image of saddle clamp -click to enlarge