I enjoyed this video about prepping for the Hour Record. When the presenter was challenged to ride while putting out 440 W, estimated to be the amount produced by Sir Bradley Wiggins when he took the record in 2015 at over 54 kms, he lasted 45 seconds. However, there was no mention of watts/kg, a key measure of cycling power. I can easily produce 440W for a minute, but at more than 12 kg over Wiggins' weight when he did the ride I would probably need to produce something crazy, like 650W, to get around the track in the same distance in one hour. Ain't gonna happen!