BBS01B 350w question.

Rockstar

Just Joined
May 31, 2019
2
0
Hi all, new member and first time conversion kit user/installer.
As this is my first kit I'm unfamiliar with what might be considered normal for the bafang motor so I thought that I'd ask the learned people on here.
My question is that when I push my bike backwards there is a slight grinding/vibration from the motor mechanism. Now I'm presuming that this is the motor gears turning so is it normal for these kits to do this? I notice that the chain vibrates in sympathy to the noise.
Just checking that all is as it should be.

Many thanks