I have been getting rust on my chrome wires because they have a groove where water sits unless you dry them off after each shower (west Ireland!). I know you can use wire wool safely BUT it will leave tiny fragments of steel which instantly rust and stain. I just used Brass pot scourer for getting surface rust off very effectively. I even used it on all the chrome to clean off paint spots etc. They are liable to loose bits but are very cheap. Still need to find a tool to get behind the spokes as my fingers are a little too big. A small bottle brush does most of it but not that groove inside the spokes where you need a bit of pressure to clean it well.
Interesting. Pictures show something similar to steel wool but made of brass. Does it also come in grits or grades ?
I don’t know about grades but these do the job of removing that blueish corrosion on the chromed brass eg. front grill and of course rust spots etc.
I got them on Amazon -Kleeneze KL072177EU Euro 3.49 for 3.
In South Africa they’re called ‘Goldy Locks’ pot scourers.
You can also get Bronze Wool from marine stores.
Some use shoe laces, going from spoke to spoke