I didn't notice any resistance with power off, and I also noticed no resistance or change when I exceeded 28 mph several times on the downhills and the motor shut down. It was smooth. One thing I did notice that is kind of like resistance was that sometimes while not peddling and then lowering the power or turning it off (say I were coasting after cresting a hill and turning off Turbo), there is a resistance while initially pedaling. It's like the motor is still engaged, but no power is going to it, but after a couple of peddle strokes, the resistance is gone. It's kind of like switching out of 4 wheel drive on a truck while stopped. When you initially start back up, it's kind of like the 4 wheel drive is still engaged when it really isn't, but that resistance quickly goes away. Whenever I lowered the power or even turned it off completely while pedaling, I didn't feel that "resistance" if that's what it is. I'm thinking maybe I need to increase/decrease power while pedaling, and not while coasting. But I'm just guessing on that. Whatever that feeling is, it only lasted a stroke or two. Is there a clutch like thing in there? I don't know.
When I bought the first (but not the last) e-bike in August last year, I couldn't even fancy making 70 miles... Of course, the battery is of limited charge and you might need range extenders in the future but that's another thing.
