Krylon or RustOleum <-- u dont want to use this for a bike.
What U can do also is to go to a car paint supplies in your area, pick the closest color from the chips catalogs and ask the buy to put the paint in a spray can. If you dont want to deal with clear what u can do is ask the guy to see if they can do that paint in single stage.
If you dont need to paint that much will be like 20 bucks.