Based on F1 technology, EXT&';s proprietary AS3 dual-positive air chamber feels like a coil sprung shock 2 separate air valves adjust the positive chamber: +/++ (low/high), fine tunes air spring curve characteristics Large volume self-activating negative air chamber Unique air seals design based on aerospace technology Large 28mm hydraulic main piston with Super Finish surface treatment Adjustable Hydraulic Bottom-Out Circuit (HBC) table{border-collapse:collapse;width:100%;}td{text-align: left;padding: 8px;font-weight:350;}tr:nth-child(even){background-color:#f2f2f2}th{background-color:#eb212e;color:white;text-align:left;padding:8px;}.desc ul{font-size:24px;font-weight:600;margin-left:-25px;padding-top:35px;border-top:3px solid #f0f0f0;}.desc li{list-style:none;border-bottom:4px solid #eb212e;width:142px;} TECH SPECS Model Aria V2 DH Stroke 75mm Eye-Eye 250mm