So I was listening to an older podcast this morning that made me think of this thread. It was one in which @Jonathan brought up the VO2 Max figure that you get from the garmin device (that data is actually stored and trended on garmin connect). He said he had a field tested 65.
If anyone checked the link from the slowtwitch discussion from a few years ago Dr. Coggan’s assumption about 3.9 W/Kg was based on a VO2 max of 65, which he thought should be achievable. Something doesn’t quite add up, and someone else mentioned it in the slowtwitch forum since a 65 VO2 max will correlate to a 2:30 marathon according to Vdot calculation (assuming you have good running economy and have the miles in your legs).
Sounds to me that ~4 W/kg is still setting a low bar as a genetic limit for an average person if that is based on the assumption that the average person can train up to the specified VO2 max.
Also thrown around in this thread a bit… But at 3.5 W/kg, you will be a competitive sport class (Cat 2) MTB with that sort of power. At least around here. Not sure what road category that will equate to, but at least a moderately competitive cat 4… It’s harder to guess with road riding since it is not self-selected like in MTB and you’ll have fast people trying to get the points to upgrade.