Rotary R540 RTLD Truck 2D Wheel BalancerRotary R540 RTLD Truck 2D Wheel Balancer 2D Truck & Passenger Technology Balancer Rotary's R540 RTLD Truck 2D Wheel Balancer is a versatile commercial truck balancer that can handle large and small vehicles, from a Fiesta to a Freightliner. Designed for fast accurate balancing of commercial heavy duty, light duty trucks and passenger vehicle wheels. It's a big package that'll handle everything that'll roll into your shop. 2D TECHNOLOGY ELECTRONIC