The Ritchey WCS Carbon single bolt seatpost features a lightweight monocoque construction with a low profile clamp that reduces stress on lightweight saddle rails. The One-bolt head uses less aluminum than other designs, resulting in a reduced weight. It also makes seat installation and adjustment extremely simple. It features:
Weight: 180g
Setback:
25mm (31.6 x 300mm)
30mm (27.2 x 300mm, 27.2 x 350mm, 31.6 x 350mm)
High modulus carbon fiber monocoque construction w/ 3D forged head design
Loosening one single bolt allows for both fore/aft and tilt adjustments
One-bolt clamp system makes seat installation and adjustment extremely simple