The above picture is from a 3668, 5mm shaft with a 18x39 rotor that I am currently working with.
The specs as posted for the motor is correct but I had shown the wrong rotor.
36x50
4000kv
4-pole rotor
12 slot stator
Y wound
3.17mm shaft
1300 max watts
Here is the correct one pulled from my Sparrowhawk XT
Sorry for any confusion.