2Smoke wrote:RGV & RS have the forked type of lower mounting so won't do.

RS125 Honda & CBR600 fits well!

You have to remember that the RS125 shock with the piggyback reservoir won't fit under the standard seat unit without modification.
I think somebody said they got a RS125 shock with a remote reservoir which fitted under the standard seat.
Also, the RS125 shock mountings need to be modified to fit in the NSR.