Originally Posted by
Retro Grouch
Years ago I got to thinking about how to compare bicycling to running. I decided that a bicycling century must be about the equal to running a marathon. Roughly a 4 to 1 ratio. My logic was that either is do-able by an ordinary mortal, but both require about the same degree of dedication.
I've ran a couple of marathons and ridden many centuries. The marathons were MUCH harder to me, you have no break unless you want to walk and my pride wouldn't allow that. On the bike you can always coast, and if it's in a group I'm coasting a bunch in the draft anyway.
But I haven't ran a mile since I retired from the army 8 years ago. I was a 6 minute mile guy but I don't miss it and my knees thank me.