[Graham]

I have drilled & tapped M2 fixing holes in quite a lot of motors, I certainly wouldn't be using this bracket.

Wouldn't it be better to utilise the hole in the can just below the bearing...

To me the location of the motor is not the so much the issue, it is the fact that the performance of the new motor appeared to be less than the original one (on the video), but still with the same label on