chain deteriation notice

afl2

Just replaced my back tyre and having not been on the bike for nearly a week have noticed that the chain is showing small patches of brown on it.
I have cleaned and lubed it often. Is this likely to the extremities of the weather and me using the bike when freezing and salt has been on the road or not enough lub to protect the chain.

thanks
afl2

crankycrank

Yes and Yes. Nothing to worry about. Just apply some more lube to protect against rust and wipe off excess.

afl2

thanks
will do