If you are looking to raise the handlebars of your custom without changing its design or grip position, you can resort to CustomAcces risers. These parts are designed for handlebars of 1 inch thick, in other words 25 millimeters, but with various measurements to the liking of the rider.
CustomAcces risers have a triple layer of chrome to prevent oxidation and corrosion over time and are available in stainless steel or black. You can purchase parts of the following height: 14 mm, 25 mm, 89 mm or 115 mm. The package comes with two high precision screws that will help you mount the risers easily and safely.