gearing was 12/50 with the medusa, and previously 13/50 with a kb45 8xl...
i use the stock mechanical brakes, and thus running the thing with an airplane 80amp esc with extra input caps and a small/old cpu heatsink

stock rims/tires, 7inch [178mm height roughly]...
i was running 14 nimh cells with the kb45 [too violent for any reasonable bashing with the 5s/flightpower_evo3700].
members at e-savage.com [i am one of the founding members there] hate me because i broke my camera last year and haven`t bought one since

i will be picking one by the end of this month hopefully, otherwise i see myself banned from both forums
those medusa motors seem to carry twice the torque and efficiency you would expect...

i just love 4 and 6 pole motors...