This is a valve cover for a bicycle wheel. In my CAR - its example fot use This part should NOT be used on the vehicle you intend to operate. Because it can fly off at speed to whoever is riding in front of you. It is not nice to get a RICK in the windshield. This is more of an upgrade for the wheels of the bike. I don't have a bike - I took a picture on a car wheel. But this is just an example of mounting.