>>2719524>/diyDon't bother removing rust unless you want a perfect finish. If it's the chain or bearings that are rusting, replace them, and remember to grease them from now on.
If it's anything else, get some boiled linseed oil and paint thinner, mix them 1:1, remove the loose rust with a wire brush (a handheld one, not a ppowertool) and then soak the remaining solid rust in the linseed mixture to passivate it. Once that's dry, you can paint over it with most paints and it won't rust again. Does much less damage than "rust converters" (which are acids, and usually make it rust even more) and is not as much of a pain as grinding down to clean metal is.
For regular cleaning, hose it down with water, maybe scrub with a soft brush or sponge, let it dry, then regrease any open bearings you might have and lubricate the chain.
Also, stay away from WD 40. That shit is way to thin to protect against rust or grease properly. The only thing is good for is getting into narrow cracks when you're too lazy and / or stupid to disassemble something and can't heat it up enough for proper grease to flow in. If for some reason you can't use paint, linseed oil or anything else that turns solid, you want a grease jelly that's as thick as possible or a wax. Thin oils won't last past the next rain.
