You could spend more cash on a carbon seatpost, but you might wonder afterwards whether that money could have gone towards your entry fee for the race that changes your life. Luckily, the FSA SL-K Carbon Seatpost combines race-ready weight and stiffness with a criterium racer's salary. 

The SL-K Carbon Seatpost uses a uni-directional (UD) carbon fiber construction that makes it light, as well as strong enough to pass the industry's toughest standards, CEN. The reliable two-bolt alloy seat clamp allows for minute adjustments that can make a world of difference in riding comfort. The wall thickness and weave pattern provide a dampening, compliant ride quality without sacrificing the rigidity needed for a hard push in the saddle.

The FSA SL-K Carbon Seatpost comes in a 350mm length and in a 27.2mm or 31.6mm diameter. It's available as a zero-setback post, or with 25mm of setback.