The Aether throws out the rulebook on tubeless valve design, starting with the valve core itself. By eliminating it entirely, AbsoluteBlack removes the most common point of failure: a tiny core, and restricted airflow path. No tiny core. No tiny airflow path. Nothing to clog. The result is a streamlined two-part design with a more direct airflow path, making inflation easier and tubeless setup faster with less ongoing maintenance. Weight savings come from ditching aluminum in favor of a long carbon fiber composite construction, bringing each valve in at just 2.6 grams (30mm) and 3.2 grams (55mm)