I have an '89 CR500 and I find the original usd forks to be very harsh, so I intend on fitting a set of '89 USA spec KX500 (46mm conventional forks). Has anyone else here done this conversion and am I going to have dramas with having to change the stem on the KX triple clamps ? I have heard that XR650s use the same size forks, so it may be easier to use a set of XR650 triples on my CR.