I have a power-meter on one of my road bikes, but not on the one I keep at her place and have ridden against the e-MTB. I know my legs well enough to know I'm

I have a power-meter on one of my road bikes, but not on the one I keep at her place and have ridden against the e-MTB. I know my legs well enough to know I'm putting out well over 250w (probably closer to 400 for a few seconds) if I want to keep up with her initial acceleration. I've been a clipless pedal user for about 25 years now :)