Check the listing for details. Ritchey RL-1 2-Bolt Seatpost - 30.9mm, 400mm, Black. Condition: New. Listed at 43.44 USD. The RL-1 2-bolt seatpost design provides a class-leading balance between strength, weight and easy adjustability. Low-profile clamp reduces stress on lightweight rails and won't bottom out.6061 alloy with two piece construction. 2-bolt design head for easy adjustments. 25mm offset, 400mm total length (includes 100mm of minimum insert). Item Specifications: Length, 400, Color, Black, Weight, 300, Diameter, 30.9, Material, 6061 Alloy, Defined Color, Black, Clamp Style, Standard Rails, Offset (mm), 25, SHIPS TODAY! Order before 1:30PM EST, M - F, and this item ships the same day! HAVE A QUESTION?Expert customer service by bike experts! A Real Brick And Mortar Retail Bicycle Shop with people you can talk to! Contact Us! (9-5 Mon-Fri, 12-4 Sat & Sun EST) Chat With Us