Yes mine is very stiff and I do most of my riding on bumpy mountain roads. Asked the Yamy mechanics and they told me how to soften it up and was given a tool when I bought the bike. However I was unable to turn the adjustment myself so I will have them do it next week at the shop and will post results. It rides much softer with 2 up but I weigh only 150 pounds and I think they had a much hevyer person in mind for the stock adjustment. I was told front shocks have no adjustment.