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August 19, 2005
3:08:01
This reflects my time biking for 4 days of commuting this week. I rode 80.62 km (50.11 mi) at an average speed of 25.7 kph (16.0 mph).
As usual, the time and thus average speed includes any time the bike computer considers the bike to be moving, which therefore counts not only the downhill in front of my house where I maxxed out at 67.4 kph this week, but also some time logged at approx. 0 kph maneuvering the bike around inside train corridors.
This morning I felt jumpy. Must've had too much coffee before leaving. On the stretch along the Isère behind campus I decided to pick up my speed to what was roughly average Tour allure, about 47.6 kph (29.6 mph). On the flat that's so fast for me I probably couldn't keep it up for more than about a kilometer. Hard to imagine riding 4 hours at that speed, even if I could do much of it drafting on somebody else's rear wheel.
It's similar to the speed at which the top runners do marathons. 20 kph (12 1/2 mph) is the speed at which I run 200 m intervals. Maybe I could keep it up for 400 m. Once.
Posted by Mark at August 19, 2005 09:06 PM