TSDZ2 Fixing Block - difference to Bafang?

[kiwisibk]

Hello all,

since I mounted my TSDZ2 on a full suspension MTB, I wonder why the Bafang motors do not require a mounting block and the TSDZ2 needs one?

Thanks for any explanation!

 

[Nealh]

The tsdz isn't as robust and there is a chance the motor housing can crack, that siad i'm not using the mounting block attachment as my bike doesn't allow for it to be used.
Now it's fitted I shall use it till it breaks, then lob it for a nice reliable front hub motor.

 

[Sturmey]

To be fair, the Bafang and TSDZ2 are not the same. The TSDZ2 contains a torque sensor that built into the spindle/axle. So the torque sensor, spindle, bearings and shell has to be accommodated into a bottom bracket shell that's only 34.8 mm in diameter. Defenders of the TSDZ2 argue that this is the only mid drive motor on the market that achieves this. (afaik)
Better quality or more expensive motors (e.g Bosch) have a custom frame and dont have this 34.8 mm restriction.