Not only the bike but yourself too. How many of us warm up the bike a tad and then get on a ride off without warming ourselves up? There isn't a lot of movement while riding even if you're the hanger type of rider.
Take a minute to stretch and warm up before you get on the bike and that will help lessen a lot of those stresses that you might otherwise attribute to the seat, handlebar position and so on. The walk around doesn't really qualify as a warm up.
Riding a motorcycle isn't conducive to blood flow and with all the pressure points has the opposite effect. Try it, a good warm up routine might make that next ride more pleasurable. ;)