IcySmooth52
It's been a whole week of downpour where I'm at, and I just craved getting on the road cars don't like. It wasn't necessary for one or two rides, but I decided to do many little things to my ride to make it as waterproof as possible like adding marine grease to gaskets, thread sealant on all holes in the frame, and more. And now I'm missing the rain! It's more fun than dry gravel [smile]
In this thread, your thoughts and preparations for rain riding.

The bikes currently in my life:

'16 Raleigh RXS - '15 Lapierre Xelius EFi - '13 Marin Palisades Trail 29er - '83 Holdsworth Mistral

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RoverAl
I hear you about the rainy days. I switched to a wet lube on the chain for the last few weeks. After riding thru deep water. Take out your seat post and turn bike upside down and let the water drain out.  This crossing was almost to the top of the crank arms in the middle.
  IMAG1465.jpg
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IcySmooth52
Just got done a great downpour ride. Raining so hard, the mud washed off before I could get home and take a picture!
Roxane after downpour (1).jpg 
Roxane after grassy.jpg

The bikes currently in my life:

'16 Raleigh RXS - '15 Lapierre Xelius EFi - '13 Marin Palisades Trail 29er - '83 Holdsworth Mistral

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FlashBazbo
I love riding in the rain -- but deep stream crossings are tough on bottom brackets.  I'm replacing them every year (or more often) on my gravel bike.

But that won't keep me out of the rain.
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WiltingArtichokes
I just try to wipe the bike down after the end of the ride - I don't do anything special for pre-ride prep. Just make sure the chain, cassette, and derailleurs are dry as it seems like those are the places rust is most liable to pup up. (Then obviously re-lube the chain).

Things get really interesting on slushy/snowy rides! I'll let the bike thaw, then wipe it down.
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