That makes sense for fixed-gear setups; I guess they just have to make sure that the lower-geared motor can spin at high enough RPM that it's not limiting the o

That makes sense for fixed-gear setups; I guess they just have to make sure that the lower-geared motor can spin at high enough RPM that it's not limiting the overall maximum speed. (Or perhaps they can use a freewheel mechanism, but that defeats using that motor for electronic braking.) Having multiple motors each with their own switchable-gear transmission on the other hand might get hard to justify in terms of complexity.