Low estimated power when using slightly lighter bike.
Normally I ride my gravel bike, which is 22lbs. I've been riding my road bike a bit more, which is 21.2lbs, hardly any lighter. I'm seeing hilarious estimated power discrepancies depending on whether I attach my gravel bike or my 0.8lbs lighter road bike to a ride. All other parameters are the same. For example, on my most recent ride I get an estimate of 219W with the gravel bike vs 145W for the road bike. That seems absurd given the minute weight difference. Anyone know what's going on?