I received the ABB training guide for the CC ride in April. It suggests that it is a good idea to train 250 to 450+ miles per week and 2 to three days 125+ miles. They are not kidding. If you go unprepared you will be miserable.
The problem is the weather here precludes any road biking. That means using the trainer or go to FL.
I will do both.
The trainer presents a challenge. Body heat keeps building even with a fan and open windows.
I found a solution I like to share for someone interested in such things.
I go 6 mile segments and get off the bike long enough to let my HR get back to resting. (52 for me).
Next I sit down and do 2 miles at 90 RPM, 17 MPH. HR 115.
Stand up and do 50 RPM at 17 MPH. HR 115.
Sit down and do 90 RPM at 17 MPH. HR 115.
Get off the bike and have Ice tea laced with Honey and a slice of bread with Honey. HR 52.
Repeat for as long as needed. There seems to be no build in limit. I have done it for over 50 miles and will do 100 soon. I got very sick two years ago when I did this without being prepared.