Visit a local sign printer shop. Take the bike with you. They have a printer that prints multi-colored lettering with paint-jet onto adhesive-backed vinyl and then laser-cuts the letters. The whole shebang is then lifted with a top sheet and transferred to the object of your desire (your frame). The letters can be shiny or matte. They can use various fonts and set it up on the computer screen first so you can see how it will look. About $40.