Hi Jamie,
In my Bmax I have run a couple of different gearing options, both using the 83T spur with a 6.5t motor - both times the motor gets very hot, but I am not sure if this is because I don't get enough air through to cool it or what.
So I have run 83T with a 21 pinion - mad acceleration, still got hot - way too hot, the other time I think it was with a 19t pinion (I will check later on the car) this was much better balanced, but still got hot. I run a 120a HobbyWing as well set as standard I think. I am still working out the bugs but I will keep you posted of my progress.
Oh and by the way it was indoors on carpet, track size medium I would say.
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