Stuff is a pain to touch up cleanly. Mostly because it adheres so well, and is tough to remove to get a clean refinish.
Sand chips smooth and re-apply right over after a thorough degrease, but it won't be as 'new' looking.
A light blasting with walnut shells, or baking soda blast can take it off without damaging parts underneath. Or find a place that does dry-ice blasting. It'll take off paint and residue but not typically harm metals finishes underneath. It'll wear on plastic though, so care needs to be taken.
Chemical strippers can work too, but some will attack anodized finishes and plastics. Those which don't hurt anodize (aluminum) will most often eat plastics. Sometimes multiple modes of attack are best. I'd get with a good painter/coater and let them perform it.
Me, I just let it wear :D
