Hello again. What product or system do you recommend to remove rust? look online and there are many products, I do not decide on any. It is for the ring of a Honda SL70 headlight. It has some rust, very little on the outside but something else on the inside, the shell also has some rust, but I am not worried, a good sanding and correct painting and it will be like new. The chrome on the ring has sandpaper marks on it, looks like they tried to remove some rust at the store. I am in the UK, it was hard for me to find this complete headlight, I am very happy that it is an original vintage piece but it needs some work.