Meaning of dreaming of riding a bike depends on situation as per dream interpretation. People usually dream of dream of riding a bike or something similar and it simply means they want freedom. They are fed up with the current life. When you are riding a bike the scenes around you are continuously changing and you are expecting same thing from life.
Meaning of dreaming of riding bike with someone also means you need to give up the fear of others. You need to understand that you can never satisfy another person. The dream is a warning and is asking you to listen to your heart and not to satisfy others by doing things you do not like.
Dreaming of riding biking and causing accident or you are dashing it to something or deliberately causing accident means soon you will have suicidal thoughts or you will spoil your life.
Dreaming of riding bike also means you need to take risk and start traveling to new places. It is also asking you to meet new people and explore things you have not experienced before.