As all have indicated, it's surface rust.
I need to start prepping for the fall. I'll be applying Rustoleum rust dissolver (an acid based treatment, similar to the Loctite shown above) to remove the surface rust, then coating it with Fluid Film or other lanolin based protectant. Painting, in my opinion (depending where you live) is not going to protect as well in snow or salted conditions as FF or CRC corrosion inhibitor, etc.
Search for videos on YouTube of either mentioned products and you'll see the positive reviews.