Depending on the rocket he is correct I worked for a dealership for many years and had a few customers come back after doing alot of work on their bikes and were upset with the bikes because top speed would not change. It was because newer rockets not all of them but some do have a rev limiter that is run by mph and you need certain programmers to eliminate the saftey option.So in some cases your not running out of power, your just getting screwed by a computer... :x