I've been looking for some sort of cross reference guide that will provide a comparison of several rear suspension option for my 2012 RKC. What is the real benefit...from your experience...in the quality of ride? I'm 6'3", 225...I ride 2 up about 40% of the time and I'm looking to improve the ride and bottoming issue when two up. Yes, I do adjust the PSI in my stock setup, but it still happens.

 

Progressive 944-4020 with the heavier spring rate. Very nice, and the best the back end has ever felt on an RG that I have ridden.