PNW Cascade External Route Dropper Post, 150mm Travel, 30.9mm DiameterWe name our posts after mountains in the Pacific Northwest, but for this post one mountain wasn't enough. The Cascade pays homage to the Cascade mountain range, home to some of the best riding in the area. This post is a workhorse, it's super reliable, loved by our customers and now features multiple travel options. With a air spring system, the Cascade provides dependable up and down service for the miles to come, and maintenance on the Cascade is