postmoderne post moderne zadelpen verend pm 207 atb 2 bout 27 2o 350mm zwartThe suspension seatpost is designed to provide greater comfort for the cyclist. The suspension prevents the saddle from pressing against the rider with every bump. Optional springs available per weight class (see related articles) Spring tension can be adjusted with an Allen key Preset suspension There are two different types of seatpost suspension. One uses a parallelogram design (like the PM 705N2), while the other uses a telescopic design (PM