Chain alignment friction losses

On Thursday, June 13, 2019 at 10:02:05 PM UTC+1, Tom Kunich wrote:
On Thursday, June 13, 2019 at 1:07:11 AM UTC-7, Rolf Mantel wrote:
Am 13.06.2019 um 01:21 schrieb John B.:
As an aside, 250 watts is probably as high, or perhaps higher, than
the usual recreational cyclist normally produces.

My health insurance says 2 watts per kilogram body mass is a healthy,
above average value. So a normal recreational cyclist is likely to have
a sustained output on the order of 100W (typical female, 50kg) to 150W
(typical male, 75kg).

Rolf

I'm nearly 75 and 6'4" and have fattened up to 190 lbs with something of a small roll around my middle and can sustain 350 watts for over 10 minutes and a continuous 250 watts. Since everyone on two wheels seems faster than me I have to wonder about that claim.

Holy ****, I'm not cycling with you. Never mind the 350W: I can do that briefly, but 250W continuous... the very attempt would kill most men my age that I know. I'd probably survive, because I'm a lifelong endurance athlete, but my therapists and my cardio would dump on me from a dizzy height because they don't want me to exceed 80 per cent of max heart rate more than momentarily.

AJ
I'm faster than anybody, downhill that is