Mass is the enemy of performance, so we pulled out all the stops to make the Alpinist Seatpost the lightest post we’ve ever seen that passes our standards. At 136 grams (27.2mm x 300mm), it’s about as light as you’ll find. Not only does light weight make for faster climbing, it also improves acceleration and ride quality. The Alpinist micro-adjust clamp ensures precision fit and secure retention. Available in two sizes, 27.2mm x 300mm and 27.2mm x 360mm, each with a 20mm setback. And because they are backed by a no-fault crash replacement policy and lifetime warranty, you can rest easy knowing that we’ve got your back.