Only Suspension + Dropper Design on the Market – Provides 40mm of tunable air suspension for smoothing out bumps. Clean Setup for Modern MTB Frames – Internal or external cable routing. Ideal for Gravel & Hardtail Riders – Adds comfort without full suspension. Perfect for Gravel, MTB and Commute Bikes – 27.2mm, 30.9mm and 31.6mm diameters. Dropper Travel – 100mm (27.2mm diameter) and 120mm (30.9mm & 31.6mm diameters). Does NOT come with cables and housing. Lever kit sold separately, we recommend the Loam Lever. The Coast Suspension Dropper Post combines saddle height adjustment with built-in air suspension for added comfort and compliance. Featuring integrated suspension travel within the dropper, it helps absorb small bumps and trail chatter — ideal for gravel bikes, hardtails, and rigid setups. Available in 27.2mm, 30.9mm and 31.6mm diameters with multiple drop travel options. Delivers both performance and comfort in one innovative seatpost design.