Originally Posted by thump55

I have lots of things to think about. My wife tells me exactly what they are every day.

I do remember doing some mental calculations during my last century to figure out approximately how many actual pedal strokes I will have done by the end of the ride...that'll keep you occupied for a few minutes.

If 5-1/2 hours is too long to spend with yourself, maybe you've been hanging out here too long.