The Balancer kit allow for fast and easy T-bar adjustments. This quickly adjusts the T-bar for your vehicles center of gravity allowing for faster and easier setup times. Most vehicles start out as bottom heavy and will swing like a pendulum (bottom heavy). The Roto 2000's T-bar is adjustable but the balancer kit makes adjusting the T-bar easier by pulling it up for you so you can find the correct balance for your vehicle. A correctly balanced vehicle spins with just one hand!