Don't forget running In is all about not putting your engine under load or stupid revs , if you are concerned your engine is revving to high it probaly is. After 300 miles of riding like a girl on a px start to give it short blasts and increase revs a little more to get engine used to running at different temps. It's not all about speed and sitting at 40mph all the time if it was factories would do that on a rolling rd to take away warranty claims