it'll work okay. do it up if that's what you desire. 15/66 is a good starting point. of course a motor without brushes would be better.
Yes a MMM and a 1515 or a 7XL
But it was free ....I love free stuff
It has a 12T 32P already press fit on
The motor is 48mm in dia. compared to 36 mm of a 550
so how am I gonna mate the 66T to a12T or a 15T ???