Greetings -- I just ordered the 0800,225.0700 Eibach coilover spring from summitracing.com for my 2015 dl650xt for $73 delivered, plus the spring adapters from racetech.com for about $57; the adapters are cheaper at procycle.com. use the spring rate calculator at racetech.com for "street" riding, not "adventure" riding. otherwise, you spring will be too stiff for your weight. for my weight (160 lbs), the race tech calculator estimated a 12.5 kg/mm which is equal to 700 inch lbs.
kg/mm to lb/in Converter, Chart -- EndMemo
using this calculator, the race tech spec for a 13.4 kg/mm is equal to the Eibach spring 800.225.750. order it using those specs at summitracing and save $70 on the racetech price. for 12.5 kg/mm or 700 inch lbs, order the Eibach 0800.225.700, etc. the first 2 numbers on the summitracing order align with the racetech specs for the spring dimensions: 8 inches x 2.25 inches
I weigh 160 lbs naked. However, when I'm dressed with my cargo in the top box and pillion, I weigh 250 total. with preload set at 5, my sag is 70mm versus recommended 40mm. the front sag is fine with 2 lines showing on the front forks, versus 3 lines in stock condition.
There re are many posts on this thread where riders give their weight, etc and explain how the different spring rates worked out for them. RoosterMan weighs 190 lbs and used an 11.6 kg/mm. He had to set preload at 3 lines on the shock to get the correct sag. He would have been better off with the 12.5 spring, so that he could get the correct sag with no preload. Based on his specs, I opted for the 12.5 kg/mm or 700 inch lbs spring.