I am making a Remote Controlled 3kg Sumo Robot.

Hardware I have used is :

esp32 with ps4 controller

BTS7960 motor driver

Johnson 600 rpm a grade motor

Now I want to add something which could create a good down force so that I can make it more stable.

Please suggests me some hardware and also in budget under 500

I am making a Remote Controlled Sumo Robot.

Hardware I have used is :

esp32 with ps4 controller

BTS7960 motor driver

Johnson 600 rpm a grade motor

Now I want to add something which could create a good down force so that I can make it more stable.

Please suggests me some hardware and also in budget under 500