My wires run through axle then out to wheels, wire may be broke, shorted, should be a hum when brake applied, you can hold a compass by wheel and when brake applied compass should move, some measure amps to see how much power is being applied.
"The 375HH is the greatest level of power you can get for the investment in recoil." (JJHack) 79s and losttrail, biggest waste of air.
