3 ms·

Looking at the powertrain: https://www.youtube.com/watch?v=VD4s92gwlMY https://www.youtube.com/watch?v=VD4s92gwlMY It has to be either the planetary gear set

by Tade0 5y ago

Looking at the powertrain: https://www.youtube.com/watch?v=VD4s92gwlMY https://www.youtube.com/watch?v=VD4s92gwlMY It has to be either the planetary gear set or the chain - none of the gears are helical, so they're bound to be noisy. According to the specs the motor is a permanent magnet synchronous motor, which is normally mostly silent.