It is not official yet but there is a good chance only the motards will require axle sliders.
Like Pierce mentioned, bar ends and pegs are what do damage to the track on most of the sport bikes.
There is a good chance that folding pegs and bar ends will be all that is needed for bikes like the NSR. The only thing I have done to my stock NSR, as of yet, is to make sure I have new plastic bar ends and spares. I also removed the kickstand and cut off the tab from the frame that the kickstand mounts to, right at the weld.
I am also going to make sure I smooth out the underside of the pegs. After I cut them shorter, the edges became rather sharp so I am going to clean them up on the bench grinder.
I hope this is enough for the NSR. I like the axle sliders Brad posted up. If needed I will be taking a closer look at those.