Originally Posted by mstraus

While generally a good plan, I don't know if all areas along Caltrain have a place you can leave a bike, particularly overnight.

Leaving a bike at caltrain in SF for the day is definitely possible, the small bike shop in the caltrain station does off secure bike storage and I think it may even be free or very cheap (part of the lease agreement).

Not sure if other posters are familiar with Caltrain, but its probably the easiest train to bring bikes on I have ever seen. They have entire bike cars. Many of my coworkers do this and it works very well for them.