Rust free chain, chainrings and cassettes ?

[ebike11]

Hi guys
I sometimes keep my bike outside with a cover, due to a lack of storage space here in the city. I lube everything when I can but surface rust still occurs on the chain, cassette and chainrings due to outdoor elements. Are there any particular brands/parts that wont rust and also not be an eye sore?? Thanks

 

[MadRhino]

I have a YBN Titanium chain that has no corrosion mark after riding 2 dirty winters on salted streets, but I could buy a new chain every year for a decade to match its cost. It is the same for chainrings and cogs that never rust: either they are very expansive or they are anodized alloy and have a short life expectation.

 

[izeman]

kmc and connex both have ebike and stainless steel chains at least.
chainrings are available in aluminium which should not rust (at least not red rust, like steel)