Super Speed Micro-T

My micro-t's:
first one: all stock, except for 2s lipo. 14t pinion.
second one: full alu, carbon fiber chassis, sr31000 (Dsm2), 3s lipo, 10250 kV brushless, 14t pinion, 49t spur.
(I saw 78 kmh earlier, hovewer I dont trust the stock charger and take it off before full charge. I will buy a balancer/charger later)