Originally Posted by
colnago62
The has to be some other reason. The difference couldn’t be that much from just how the power was measured. My bet is there was less wind at the velodrome then where you were riding.
I am not the OP. I expect 5-10W for meter. But I think the OP was on a trainer, so watt for watt, they may not be 100%. And his power was 265 W, It is very hard to tell our difference drag. My legs are hairy I assume if you're at the track your legs are shaved, then the kit, and position. My kid is 170, wide as a barn. I'm a wee above your weight and not so much wider than he is. Aero profile matters a bit at 20mph. A 26W at the pedals can do >22 if positioned well, and 25 on a tt bike.