How can I adjust the handlebars on my road bike to raise them to a more comfortable position?

To adjust the handlebars on your road bike to a more comfortable position, first loosen the bolts on the stem using an Allen wrench. Then, raise the handlebars to your desired height and tighten the bolts securely. Make sure the handlebars are aligned properly with the front wheel before testing the new position. Adjust as needed for comfort and stability.