frame

not hard at all

i have never painted plastics but i woud go over them with some steel wool to give the paint something to stick to

also use krylon fusion its made for use on plastic
 
my bad you want to paint the frame with some good spray like rustoleum or even better have it sprayed with a sprayer

i sand blasted mine and used oil base paint in a sprayer and its holding up great
 
alright dude.. im getting some new tires maybe razr 2s dont know yet but im painting it prett much all black... but what will steel wool do??
 
steel wool will scuff up your plastics enough so the surface isnt so smooth and paint will stick better to a rougher surface than a smooth one