I think its one in the same Uzi. It adds 3-4 inches of slack to cable, but uses all existing set-up, and mounts to perch. It made my new cable unravel from end, because of the extra arcing. It has three different leverage points. It doesn't mess-up stroke of clutch pull, but doesn't make it way smoother either. It has alot of rubbing friction inside mechanism. Here's a pic of my k5 with it on, (before it ruined a new cable, and before I broke down and shelled out for the Magura, which is 1000% better than ever before!!!!)