Originally Posted by P-nut
I weigh 175 lbs and the stock spring rate ( .470 kg/mm) is a little more than what is recommended (0.455 kg/mm)for my weight. I got these numbers from Race Tech's website. Keep in mind, I have already ridden a DR with this shock (using the stock spring). He was previously using the gold valve kit from Race Tech.
The stock spring rate is 6.5kg/mm for the rear shock.
Most of us in the 180lb range are using 7.6kg/mm rear.
0.47kg/mm is the recommended front spring rate for 180 odd lbs.