find a set of used fork springs from a Honda VTR1000 Superhawk (they also have 41mm forks). I dont remember the rate, but when I calculated it before installing mine, they were perfect for my 180lbs weight.
The springs are a tad different length than the stock NSR springs, so you will need to cut some PVC pipe to make new spring spacers to match the stock springs/spacers.
If you are anywhere near a racetrack, you may even get these springs for free (racebike upgrade throw-aways).
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Paul Herr
'88 FZR4/GSXR/YZF Frankenbike
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