DT Swiss D 232 Dropper Seatpost - 27.2 60mm Black L1 Trigger HBDT Swiss D 232 Dropper Seatpost 27. 2 60mm Black L1 Trigger HB. The D 232 offers everything you could want from a cross country dropper seat post. 60 mm of travel delivers extra performance when it comes to technical passages. The fully mechanical system is not only reliable and easy to maintain the UPSIDEDROP technology keeps the weight of just 416 g possible. Aluminum seat tube and saddle clamp 60mm of travel with two actuation steps up and down