And to do a good job, you can't really use rattlecans; the stuff doesn't cure hard enough.
It's not the sort of job I'd do myself, and I do as much as possible of my own work.
Painting frames is a right PITA and requires proper equipment for a good result.
Although if it's an aluminium frame, you can get a pretty good result by stripping it raw and giving it a brushed finish with Scothbrite or a plastic kitchen scourer.