dogman dan
1 PW
RE the 900 watts. There is no reason to try to get up hills with less watts. Particularly with a hub motor, the most efficient thing is to charge the hill at 15 mph at least, or whatever the motors max is.
Its most efficient, and easier on the motor. Trying to lower the watts just makes the motor run low rpm, and lose efficiency. At whatever speed, the most efficient way up that hill is to keep the motor working at 15 mph rpm. Or more! if it can do it.
With a mid drive, its different. In your lowest gear, you can grind up it at 5 mph with the motor spinning efficiently.
But bear in mind,,, the work to put x amount of weight up y grade of hill never changes. Up that hill will take x watt hours, or more if the motor runs inefficient. The thing to watch is your average watt hours per mile.
Its most efficient, and easier on the motor. Trying to lower the watts just makes the motor run low rpm, and lose efficiency. At whatever speed, the most efficient way up that hill is to keep the motor working at 15 mph rpm. Or more! if it can do it.
With a mid drive, its different. In your lowest gear, you can grind up it at 5 mph with the motor spinning efficiently.
But bear in mind,,, the work to put x amount of weight up y grade of hill never changes. Up that hill will take x watt hours, or more if the motor runs inefficient. The thing to watch is your average watt hours per mile.