What you're looking at is Santa Cruz's new "Steering Technologies Dampener"--or STD for short (and the acronym is intentional)... Basically, as Doug Hatfield put it: "two bits of metal we machined ourselves to offer 8 millimeters of fore/aft adjustment. We use a Chris King Preloader to make the entire thing act as a steering dampener, while at the same time offering the cockpit adjustment." Don't go running off to Santa Cruz's website to buy one--these are strictly machine shop one-offs made to order.