I use a carauba based wax wash to clean bike and chrome parts, then either gt85 to protect( has PTFE in it) or if I feel like polishing then meguiars all metal motorcycle polish. I like that it smells of cherries when you put it on and then when you ride a few miles you can smell it then as well, lol, seriously though it can polish up metal very well. For winter and when i think salt is on our roads then everything gets some acf 50
I use this, http://www.icasque.co.uk/Motorcycle...MI3pS49Yj91QIVirXtCh2nuAeGEAQYAiABEgLRx_D_BwE Hope the link works, no affiliation to seller, it's top stuff and perfect for Chrome, if not google Belgom Chromes. TBB>
Autoglym Metal Polish for chrome and alloy, I've not found anything as good and I've used a few different products. It seems to leave behind some sort of protective wax that stops the alloy dulling.