2200kv Castle motor is sensorless. This won't matter with the Mamba Max ESC. They both use a longer can, intended for truggies. That 2250kv in a buggy would be overkill. The comparable buggy motor (to the 2200kv castle) is actually the 2050kv Tekin. However, I'd recommend the 1900kv on 4S ultimately. It's a perfect motor and can be geared for any track.