No real difference in numbers between Hammer or Kingpin. Or Vegas, Jackpot, etc. Now there are some small differences between years, but not so much between cruiser models.Welcome to the forum
...who is driving the Kp will have lotsa factor if you're looking for a quick bike that is stock I believe the hammer puts out better numbers : but not as stylish as the Kp
'08 and '09 are IDENTICAL. You did get a specific year.