Ritchey WCS Carbon 1-Bolt Seatpost (Black) (31.6mm) (400mm) (25mm Offset)

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Ritchey WCS Carbon One-Bolt Seatpost.  Head uses less aluminum than other designs, resulting in reduced weight.


  • Monocoque unidirectional (UD) carbon fiber post/head
  • Patent pending SideBinder 1-bolt fore/aft and tilt adjustable rail clamp
  • Includes clamp for 7 x 7mm saddle rails: 7 x 9.6mm and 8 x 8.5mm rail clamps sold separately

Diameter: 27.2mm or 31.6mm
Length: 350mm or 400mm
Offset: 0mm or 25mm
Material: Carbon
Color: Black
Weight: 175g (27.2 x 350mm)

This product was added to our catalog on November 20, 2019

Gerald Kraines
Verified Owner
Thursday, Jul 4 2024 (2 weeks ago)
Ritchey WCS Carbon 1-Bolt Seatpost (Black) (31.6mm) (400mm) (25mm Offset)
Seatpost arrived quickly. Took a while to figure out how to attach to the seat, but your help screen was useful. The additional 4.5 inches provided the needed distance to relieve the strain on my bad knee. I'm very please with the entire viewing and ordering process.