I just installed the Progressive 465 rear shock a few weeks ago and what a difference in how nice the riding is now. I use to brace myself when I seen a bump or pothole coming but now I look for them just because it handles them so much better. I believe the KLR shock is set up for a 160 lb person. I have some Progressive front springs too and going to get some Intiminators in Oregon on my way to Mexico next month at Pro Cycle. http://www.procycle.us/bikepages/klr650.html . The intiminators are easy to install and never need to be adjusted, the Emulators are adjustable and need to be set up to your liking. So a little more work to install and set up I have been told.