The PRO Koryak Dropper Post 150 is a 150-millimeter infinite-travel, externally routed, dropper seatpost. Designed to provide you with a better sports’ bicycle experience the PRO Koryak Dropper Post 150 is an externally routed, 150-millimeter infinite-travel, dropper seatpost. Constructed with a 3D forged AL6061 alloy lower tube and shaft, with stainless-steel bolts, it is available two diameters – 30.9- and 31.6-millimetres and weighs in at 625-grams for the thinnest diameter. Its infinite travel is operated by an up/down style lever, and it features PRO’s innovative 1 bolt clamping system, which provides a wide range of saddle angle adjustments. HIGHLIGHTS 150mm infinite-travel dropper seatpost 3D forged AL6061 alloy construction External cable routing Lever: up/down style Diameters: 30.9 and 31.6mm Weight: from 625g Innovative 1 bolt clamping system, which provides a wide range of saddle angle adjustments Specifications Cable Routing Color Diameter Lever Material Series Travel New PRSP0227 Internal Black 31.6 One by Lever Alloy Koryak 150