I linked a few time stamps where you can hear it knocking.
https://youtu.be/DYAGoI6CLHk?si=PQuNejTvH5JEv8ah&t=524
https://youtu.be/DYAGoI6CLHk?si=jV0PcYfo4KgfKRVl&t=1100
https://youtu.be/DYAGoI6CLHk?si=1qb5y_tjZKU257eb&t=1145
Such a maintenance friendly design!
Ewheels and Leaperkim was on call to answer any questions, or to do the work themselves.
I only opted to do the repairs myself because I'm experienced with industrial maintenance, and I was curious as well.
I was amazed at the thought-out simplicity of the design.
I'm very pleased with this machine. More than enough power, and speed. On or off road.
I highly recommend https://www.ewheels.com/
Bearing info: 6208-2RZ/C2, NF23.05, AOSEN BEARING