Possibly not the right section , but rust ...

[LIZS]

on chrome rims of dd's bike. How can I remove please ?

Try T-cut.

ooooh can I hijack?? Rust on a white metal bath left by can of Gilette shaving gel, who do I get that off?

citric acid is good for rust stains on fabrics and similar - its a powder and you can buy it in boots or in home brew places. mix to a paste with water and rub in to the stain.

ok have tried Chrome polish and brillo pad but still some patches .