The handlebars of your Goldoro e-bike are adjustable to ensure a comfortable riding position. To adjust the handlebars, follow these steps: Loosen the bolt on the stem clamp using a 5mm Allen wrench. Adjust the angle of the handlebars to your preferred position. Tighten the bolt on the stem clamp, making sure it is secure but not overly tight. Note: Before adjusting the handlebars, make sure the e-bike is securely supported and the front wheel is off the ground to prevent any potential accidents.