> The trick was going very slow... in the steepest parts, as slow as a fraction of walking speed. Yup, that's how electric motors work: they deliver full power

> The trick was going very slow... in the steepest parts, as slow as a fraction of walking speed. Yup, that's how electric motors work: they deliver full power even at very low speeds, so you can increase torque simply by going slower - no need to "shift to a lower gear" in order to keep the engine in its high-power range!