I regularly take mine at speeds in excess of 70 mph. On the turns, just slightly back off on the throttle if you feel you are getting pulled out of your lane. It is no different at 45 as it is at 75. Don't panic, relax and enjoy the ride. You will not fall over! Don't let passing vehicles scare you, just look forward at where you are going. I fully trust my XC500. As I mentioned before, just relax. If you still do not feel comfortable, then don't go on the freeway and find side roads.