I have a riding sister and brother in law living in SF. I always try to talk them into btc or rtr, but they fear the altitude. (No luck getting them out here, yet.)

I figure that if you train in the Bay Area you are more than ready for the climbs in Colorado. And the altitude, well, that could be an issue, but I suggest they arrive a couple of days early to acclimate.

Let us know how your training goes and how you handle the altitude.

Have a great ride.... Still a ways off, I know,

sarah