Fat tires aren’t really necessary for anything but snow and sand and their motors aren’t any better than any other equivalent motor.
In fact, all other things being equal, fat tires are a little slower because they have more rotational mass. ~2" tires can handle most terrain with less weight, so they’re more efficient overall (but, if you are riding in sand then fat tires are absolutely the way to go).
More range yes. For torque, human assist has more input for a lighter wheel and motor, but fat tire motors have 50%+ more torque. Smaller diameter wheels further help torque, and the motor alone accelerating the wheel faster makes any human input just extra.
Fat tires aren’t really necessary for anything but snow and sand and their motors aren’t any better than any other equivalent motor.
In fact, all other things being equal, fat tires are a little slower because they have more rotational mass. ~2" tires can handle most terrain with less weight, so they’re more efficient overall (but, if you are riding in sand then fat tires are absolutely the way to go).
They all/tend to have much higher torque that compensates for bad rolling/air resistance.
That’s true, but skinnier tires would also let you get more range out of an equivalent battery on top of better acceleration.
It’s all a trade-off though, fat tires offer better vibration dampening/pseudo-suspension, and they are unmatched riding on sand.
More range yes. For torque, human assist has more input for a lighter wheel and motor, but fat tire motors have 50%+ more torque. Smaller diameter wheels further help torque, and the motor alone accelerating the wheel faster makes any human input just extra.
Yeah but that would also hold true for a skinnier wheel (part of why cargo bikes don’t use superfat tires),