I can't remember the title of this movie. Boy build himself a robot with four wheel and a claw on top of it. It's a remote controlled robot. Robot has also a camera. Some kind of gang kidnaps his girlffriend and he use his robot to save her. I think it was some kind of motorcycle gang. Robot has four wheels and a claw to lift or crab things and a camera. Robots front wheels are bigger than the rear ones. Boy uses some kind of remote which is over his hand or something like that to control his robot. In the end the robot was destroyed. The boy was some kind of musician. Most of the caracters are teenagers. Hope that someone knows the title of that film