Recently my bottom bracket started to make a bad sound. When I took it in to the LBS, the first thing they asked was "do you ride in the rain?"
This lead me to believe that riding in the rain (only did it a few times) and maybe washing my bike with Simple Green (did that twice but with low pressure water) is what washed all the grease out of the bottom bracket and caused the grinding noise.
Because this happened right before the Tour de Palm Springs (the day before) and the shop was busy, I had them replace the old BB with a new sealed shimano unit.
They also said that they though the cassette body would need to be replaced sometime in the next 500 hundred miles or so, but they were able to make it quiet by added some lube to it.
Now I am afraid to ride in the rain because of the expensive damage it might cause.
So my question is how much damge can riding in the rain cause and how do I care for my bike when it happens