With shaft and head formed from one continuous carbon fiber section, the K-Force Light SB0 seatpost is both light and strong. The K-Force Light SB0 features a zero-offset (in-line) clamp for a forward saddle position, with our forged alloy Minimal Top Clamp holding the saddle securely. - Forged alloy Minimal Top Clamp (MTC) - Increased setback for correct fit and saddle support - One-piece continuous carbon fiber construction - M5 chromoly and stainless steel hardware design - Zero Setback - Fits 7mm standard rails and 7x9mm oval rails - 185 grams

The new SL-K SBS SB0 seatpost is lighter and stiffer than ever. Using a UD carbon shaft with a bonded alloy head and a sophisticated SBS clamp design, we can achieve what we believe is the finest SL-K seatpost yet. Available with a polymer Di2 battery holder. - UD carbon shaft with bonded alloy head - Forged alloy "SBS" 2-bolt head - Chromoly hardware - 20mm setback - Fits 7mm standard rails and 7x9mm oval rails - 221 grams

The new SL-K SBS SB0 seatpost is lighter and stiffer than ever. Using a UD carbon shaft with a bonded alloy head and a sophisticated SBS clamp design, we can achieve what we believe is the finest SL-K seatpost yet. Available with a polymer Di2 battery holder. - UD carbon shaft with bonded alloy head - Forged alloy "SBS" 2-bolt head - Chromoly hardware - 20mm setback - Fits 7mm standard rails and 7x9mm oval rails - 221 grams

FSA's Metropolis seatpost is CNC machined from AL6069 aluminum and features a forged alloy single-bolt head with chromoly hardware. Simple and elegant, this seatpost gets the job done weighing a scant 257 grams.

The directional butting of the Energy SBS SB20 seatpost’s 6066-aluminum shaft gives it thicker walls fore and aft for stiffness and thinner walls at the sides to cut weight. A forged and machined alloy head is bonded to the top of the shaft. - 3D forged and CNC machined AL6066 w/ alloy head - Directionally butted for low weight and additional strength - Chromoly hardware - Clamp Style: Standard Rails