Three words hard-core protection. I have a 06', my brother has a 07'. I put a set of wood-craft sliders on mine. There are junk. They look good but offer no protection to the lowers or the cases. I had to machine out exstions so they would work half-ass. Anyways, He knew my discused with mine. We was at the local bike shop and they had a set of race rails. Reluctently, my brother bought them. He and I like the race look. He hated cages and did not want for his bike to look like it had one on it. It dont! They wont save your bike in a crash of course, but they do provide a lot more protection than regular sliders. Warning! The Installation is a do-it-your-selfer on 04'-05', but quite a bit more complicated on the 06'-07' due to the position of the water resivor. If you dont like fabing things or cutting on factory hardware (which I know a lot of you do "this statement is not for you") Dont try it. The main reason I like them so much is just the fact of the design. With an engeering degree my self. After going over them. It not only prevents damage to the fairings, but may infact protect the frame due to the fact it dispurses a lot of the impact impulse in to the most rigid part of the frame. So if your a tipicial street rider, These are for you.