I just finished reading the responses to BengeBoy's thread on endurance riding nutritional products. And it got me thinking about my own summer goal and potential problems.

I'm currently riding about 150 - 200 mi per week (mostly solo rides, no pacelines), consisting of three 30 - 40 mile rides and one ride of 50 - 60 miles. Plus 1 or 2 easy rides of 15ish miles. My longest ride this year is 80 miles. I finish all of these rides without problems - meaning no persistent muscle soreness or cramping and no hand, foot, knee, butt, back, neck issues. Avg speed while riding is 15 - 16 mph. Tempo riding on flat ground at about 17-18 mph. I'll be 59 in July.

I'm considering a solo two week bike trip in early Sept of about 800 miles, credit card style - not loaded touring. So my question is simple.
What are the chances I can double my mileage for two weeks without major issues?
I'm not sure I can squeeze in many more hours of riding. But in the few weeks prior to departing I plan to: 1. push a higher average speed and 2. attempt back to back centuries to stress the contact points.

I'll reduce the distance of the trip rather than undertake a rigorous training program if that's necessary. I really enjoy my current riding schedule. Sacrifice for goal attainment is not my thing.