The FSA SL-K SB20 seatpost has a forged alloy head bonded into a UD carbon fiber shaft. The SBS head uses a pair of chromoly bolts for easy adjustment and a secure hold on the saddle.

The matte UD unidirectional carbon looks great on any bike. Overall length is 350mm and the maximum insertion line to saddle rails is 250mm with a minimum of 100mm required to be in the frame. Maximum torque on the saddle clamp bolts is 8.8 Nm.