Have a unsteady and nervous feeling as high speed on the GTR I suspect something is wrong I have spoke and had great advice of this site ...but I still have not found the problem.The front forks have been rebuilt and all is fine.the headstock bearings are fine..but if I pop a bar under the back tyre.and use it as a lever against the floor there is movement in the linkages there is about a quarter inch up down play.the lower linkage is the worst with a couple of millimetres of play but the one attached to the frame has about a millimetres of play. But the thing that concerns me the most is that tiebar from the swinging arm to the linkage.this appears to move up and down on the central bolt which runs-through into the bearings..do these wear... as it does not matter how tight the nut is the tie bar still moves .the top linkage to the swingarm seem fine ...just lower middle The one that attaches to the two tiebars has movements one side more than the other if anyone feels like going outside and popping a spade or a bar under there wheel..and give me something to compare to..cheers chaps