Any acid will remove rust but OA will do it most effectively. It's best to submerge the part in a dilute solution. You rinse with clear water (and a nylon brush as the colonel suggested) to remove the whitish residue. Thereafter, you'll need to treat any bare exposed steel with something - on the inside of the bars I would recommend Boeshield. Externally some people use an light oil, clear, or just a good heavy coat of car wax. Anything that will inhibit rust.

PS - OA is great for chrome or painted parts but avoid using acid on Alloy or Zinc plated /Galvanized parts. It will attack the finish.