What are the stats on the stock spring?
The stock spring is about 56mm/2.2″ ID, 254mm/10″ long, and the spring rate has been measured at 5.3 kg/300 lb. NOTE: Although the stock spring is 10″ long, the shock appears to be built for a 9″ spring. That is, installing the stock 10″ spring puts an inch of preload on it, which is quite a bit. The consensus is that you are better off with a stiffer, shorter spring. A rate of 450 lbs/inch seems to be ballpark for riders of 180-200 lbs, and 500 or 550 for heavier riders. However, you might want to consult a suspension specialist (or the list) for suggestions on your specific weight and riding style. The proper diameter is 2.25″.
