What about the smaller bk versions? I not sure on the numbers or such. The wander series. something like a 12 series or something.

wasnt aware of them. not a bad idea though.

the 12 series has a 20 mm can diameter.6632 kv 16 mm mounting had two different lengths. I not sure if this would fit.
lehner had a motor that turned 15539kv i think it was

feigao also makes a small 380-400 sized motor.

That's a sweet lookin' T Serum... Looks much better than mine...