I wanted to have an inexpensive replacement motor for my Super Fighter G and came across the offer. Unfortunately, the build quality is rather poor, the Motorkohlen terminals in the shafts and do not get right contact, then I have even helped me and made the coals consistently with some sandpaper, the power that the engine produces is to be considered rather low, of me so no buy recommendation.
So removed the engine and and very quickly forgotten.
I then invested in the original Tamiya Sport Tuned motor which runs like hell and does not cost much.