1. If you dream that you see a motorcycle crash, this is a strong warning to slow the tempo down and pay attention to your life because you're on your way to messing everything up..
2. If you dream that you're crashing with a motorcycle, you'll have a heap of issues and bothers crash down on you, while the fault will be entirely your own. You'll mess your life up with your stupid actions and it will be difficult to put things in order..