brakes

Hello everyone, this week I bought Kraton 6S, this is my first ARRMA RC Car, but unfortunately I noticed a problem with reverse gear and the brake. After I press the throttle, I can't always brake the car and when the car is stopped, the reverse gear it does not always operate, I have to press...

When I brake on the arrma talion v3 there's a whining sound. Gear mesh if fine. Seems like a sound that the speed control produces. Is this normal?

Hi all, I just bought a used Granite mega, RTR, black/red with the Tactic transmitter and having some problems. Everything is fine except for the braking. When I pull the trigger it drives forward, but when I push, it doesn't stop but rolls and decelerates very slowly. When I push the...