Ritchey Comp Zero Carbon Seatpost A Lightweight and Simple Seatpost Your seatpost doesn't have to be overly complicated, but it does need to be lightweight and highly durable. The Ritchey Comp Zero Carbon Seatpost offers no-slip saddle engagement and high adjustability by securing the rails with fore and aft bolts. Whether you're hitting rough singletrack or remounting in a hurry, this ensures the saddle stays exactly where you want it. Features Easily adjust the angle of your saddle with the two screws on the clamp Zero offset and is compatible with standard rails Lightweight carbon fiber design with a 6061 alloy clamp SPECIFICATIONSDiameter27. 2, 30. 9, 31. 6mm Length400mm Offset Zero Material Carbon Fiber, Aluminum Clamp Intended Use Mountain, Road, Gravel Weight N/A | Ritchey | Comp Zero Carbon Seatpost 30. 9 X 400Mm, 0Mm Setback