The Alpinist Carbon Seatpost is made by Roval, within the Specialized family, and the superior, exceptionally lightweight 27.2mm round post is the post of choice for the superlight S-Works Aethos frameset and complete bikes. Not only is the Alpinist Carbon light, but the 12mm offset design offers some engineered flex into the upper portion that adds to frame compliance and ride quality, yet weighs a scant 136 grams in the 300mm length. If you are concerned about strength, remember this a Roval carbon post, and it is rated for a rider weight up to 275lbs.

The Alpinist 2-bolt micro-adjust clamp with extended saddle cradle ensures precision fit and secure, safe retention for 7x7m round or 7x9mm saddle rails. The 12mm offset design belies the fact that the 46mm long clamping zone allows you to effectively and safely install most saddles from Zero to 20mm offset. Roval and Specialized are so confident about the strength of the advanced composite construction and clamp design, the Alpinist is backed by a no-fault crash replacement policy and lifetime warranty,