The VO Stem Adapter fits in a regular 22.2mm fork and works with a 1-1/8" (28.6mm) stem; 180mm total length, 110mm above the minimum insert line, steel bolt and wedge. It accepts a standard 1-1/8", 40mm stack height stem. It will not work with the tall stack stems, as the stack height is too tall. The finish is high polish alloy. 272g.