this is how get the proper setup of bearings and washers for square tapper 73mm BSA BB:
so as you see the most external bearing is actually alligned with the external edge of the bracket, then i substracted one washer (on picture are 3x washers but it should be 2x) so the cup could fully press the bracket to the frame
.

After that i tried to fit the chainring. The original placement was giving me 55mm chainline (crank not fully seated on axle).

So i mounted the spidedr on internal side of freewheel and is perfect:

Now the mounting is finished and chain installed as well. I am not able hovewer to find the PIN .
Also the chain is rubbing against torque sensor arm.

so as you see the most external bearing is actually alligned with the external edge of the bracket, then i substracted one washer (on picture are 3x washers but it should be 2x) so the cup could fully press the bracket to the frame
.

After that i tried to fit the chainring. The original placement was giving me 55mm chainline (crank not fully seated on axle).

So i mounted the spidedr on internal side of freewheel and is perfect:

Now the mounting is finished and chain installed as well. I am not able hovewer to find the PIN .
Also the chain is rubbing against torque sensor arm.
