The QS138 70H V3 is a mid-drive electric motor with a continuous rating of 5500W and a reduction gear ratio of 1:2.35. When coupled with an ASI BAC8000 Motor Controller and a suitable battery pack we have seen peak outputs of well over 20kW without significant motor heating.

These motors are ideal for electric motorcycles, dirtbikes, go-karts and a wide variety of other small electric vehicles.