Canuck wrote:Made me think first of everesting, as mentioned already by others.
Made me think of Fatcyclist's "100 miles of nowhere".
I haven't done that either.
A couple of years ago Ballarat Sebas Cycling Club members did a 24 hour thing on the velodrome as part of the annual cancer research fundraising ride. It was mostly school kids doing it as a relay, but one grown up did it as a solo. I'm sure he took... ahem... nature breaks and stopped to eat, but he essentially rode through the 24 hours and clocked up in excess of 500 km.
I can't think of anything worse. *shudder*.
Come to think of it, although I haven't ridden the track much in the last couple of years, I haven't seen that guy on the track at all since then. He used to be pretty keen. Maybe he cured his interest in ride-straight-turn-left by doing 500km of it.