Picked up new Raven S 10 days ago. Noticing a hi-pitched whine from front motor when driving at highway speeds (above 45mph or so), but only when the motor is consuming <10-15 KW or is generating <10-15KW. In other words, when it is turning 'slowly' in either direction. I'm assuming it is the motor, since the whine disappears outside of the ~30KW range noted above.



Anyone else have same issue?

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