My z500s ride is ruff to say the least on medium rocky trails. The suspension is stock and I have made no adjustments. I also have the original factory tires with only 630 miles on the machine and I keep the recommended 14 psi in the rears and 10 psi in the fronts. I thought about dropping the pressure a couple pounds, but I'd also like to do some tweaking on the suspension. Not looking to replace the shocks like some have done being this is our first side by side and we are just getting started. We plan to upgrade in a few years... Thanks for the input.