What happens next?

How to raise road bike handlebars
Find the spacers above and below your handlebar stem.
Your handlebar stem is the rod that the handlebars connect to. If you have a threadless system, you should see spacers, or plastic rings, wrapped at the top and bottom of your stem.
If you don't have these rings, then you most likely have threaded handlebars. Threadless handlebars will also have additional screws on the back of the handlebars.