My wife had been asking for more room on the back when 2 up, so moved the pack with stock holes and gained about an inch. Adding a new Mustang Solo/Pillion that moves me down and back so my spider senses tell me I mucked the clearance up so went hunting for a new solution for additional space. Kury had a couple, an adjustable for almost 3 bills and a 3 position solid for half that which I went with. Nice quality and lines up perfect. I wanted to document because there didnt seem like a lot of direct information if used with removable setups but it works perfect. Can set with 1/2/3" moves plus the 3/4" move built into tour pack. (2 sets of holes). I would recommend if needed. A very simple concept, a bit pricey for what it is, some have made their own from bar stock but these are nicely finished and glad I went with.