From R1 Wurks:
These are our new Tuned Body Mount Posts. They have a groove cut on each side and are .5 Grams lighter than the originals.
Sold As A Pair Of Two (Posts, Aluminum Base). These Are Our Black Anodized 14mm Tall Bases. Set Screws & Pins Will Be Included.
The Posts Are 50mm In Length. Our Body Posts Were Made For Use With The Directed Force Body Mount Kit, But Can Be Mounted Almost Anywhere.