Bafang M620 Quiet Gears


Well-Known Member
United Kingdom
Hi guys,

I was wondering if anybody has upgraded their Bafang M620 motors with the new and quieter gear/rotor available on GreenBikeKit?

The new design is meant to reduce noise. I hope so as you can hear my bike a mile away, it turns heads as I pass by.... Anything which can make it quieter would be a bonus.

Has anyone else done the upgrade and did it make much difference?
Thanks for that!

Sounds a lot better.... Definitely quieter. Just the change in tone would be welcome enough! It no longer sounds like a giant bumble bee is coming down the road. :)

I have already ordered the parts and they should be here soon. Added with some new grease it should be a big improvement.