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Wisper Tailwind Comfort


7 months 2 days ago

Yeah, that's true, Sriracha, but it's more a question of fitness-for-purpose. Hub motors are generally more efficient than mid-motors at 'typical' e-bike speeds, so if most of your riding is on less challenging terrain, you'll get more out of your battery.

This particular hub motor is still plenty powerful enough to get you up even steeper hills, it's just not working as efficiently when doing so.

7 months 5 days ago

The poorer performance going uphill - at slower speeds - strikes me as being an inherent weakness of hub motors. Since they sit on the wrong end of the gear train they are obliged to operate at the the same rpm as the rear wheel, which inevitably means that as the rpm drops so too does their power output, at precisely the point (going uphill) where the opposite is required.

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