A chopper has been always considered a dangerous vehicle. But I think it's a superb one. Cannot be compared with a car in any way! It's so stunning when you are driving your chopper just as a bullet, whining in the air... It's like you hit the road on it!
But with this, chopper is not a very steady vehicle, it can be easily turned over. So, I have an idea how to correct this detail.
Attach 2 additional wheels to your chopper, so that it would be steadier at least 2fold. Now your parents won't worry so much as before… While you will be able to enjoy the speed in a former way!