Roval Alpinist Seatpost Featherweight design for your best climbs The Roval Alpinist Seatpost holds nothing back in pursuit of peak performance and ride quality. This featherweight seatpost tips the scales at only 136 grams (27. 2 x 300mm), making it the perfect companion for the fastest bikes in the world. The Alpinist is available in two lengths to accommodate bikes of various sizes, both with a 12mm offset for optimal positioning. A two-bolt micro-adjust clamp makes saddle angle adjustments quick and precise, and is compatible with both carbon and alloy saddle rails. The Alpinist Seatpost's advanced composite construction, sleek and lightweight design, and a Specialized lifetime warranty make it an unbeatable addition to the best bikes. Features Advanced composite construction make the seatpost one of the lightest on the market at only 136 grams (27. 2 x 300mm)Compatible with both carbon and alloy rail saddles with a 46mm saddle clamp2-bolt micro-adjust saddle clamp for easier saddle angle adjustment Available in two lengths 300 and 350mm to accommodate more sizes of bikes No-fault crash replacement policy and lifetime warranty for added peace of mind Specifications Seatpost Diameter27. 2mm Offset12mm | Specialized | Roval Alpinist Carbon Seatpost 27. 2Mm X 360Mm