Ritchey: Whether for a race rig or to finish off a custom build, the Ritchey WCS Carbon 1-Bolt is a sleeper post that has supreme functionality packed into deceptively simple design.A hallmark of Ritchey design lies in unmatched performance while remaining incredibly practical.A single side load bolt keeps the wide clamp together while reducing stress on the saddle rails and keeping the post secure. Sure to draw attention from the most discerning of opinions. Material: carbon fiberDiameter: 27.2, 31.6mmTotal length: 350, 400mm (including 100mm of minimum insert)Offset: zeroSaddle clamp: 7x7mm saddle rail clamp included (interchangeable clamps available for carbon rail saddles)Saddle clamp torque: 12Nm (max)Seat collar torque: 6Nm (max) / 7Nm (max) for Ritchey steel framesWeight: 180g (27.2x350mm)Colour: matte UD carbon finishSize: 350x27.2, 400x31.6