Assumeing you have either a '00 or '01 the stock rear spring is a progressive 7.0-9.0 rate. They went to WP in the frt. with .38 fork springs. I would recomend throwing the progressive spring and installing a straight rate one somewhere around 8.8-9.0 Then I would replace the .38's up frt. with approx .48's. You could also play around with oil height & pre-load also. Just some suggestions, hope it helps.