I have an update on my noisy planetary gears. I removed the back wheel On the bike removed the cover on the brake side the planetary gears are right there. They were dry no grease at all on the planetary gears I grease the gears reassembled the motor installed the back wheel and it is a quiet bike again. No noise. The job was relatively easy my guess is this job should be done maybe one time a year depending on how much you ride or if you hear a noise coming from the motor that could be the planetary gears.