Sprint Torsion Bar LFRR 975 Rate 30in

The Sprint Torsion Bar LFRR 975 Rate 30in from SWAY-A-WAY is a precision-engineered suspension component purpose-built for sprint car racing and high-performance off-road applications. This left-front/right-rear torsion bar delivers the stiffness and predictability needed by drivers who demand consistent weight transfer and roll control during aggressive cornering and load transitions. Whether you're dialing in front-end geometry on a dirt oval or tuning suspension balance for complex terrain, this chromoly tubular bar provides the foundation for dialing in your chassis.

Built from chromoly steel with a 0.975-inch outer diameter and a robust 1-1/8-48 inch spline interface, the Sprint Torsion Bar LFRR 975 Rate 30in handles the torsional loads imposed by extreme suspension articulation without deflection or failure. The 975-rate designation indicates the spring rate—meaning 975 pounds-per-inch of twist—a mid-range specification that balances anti-roll stiffness with driver feedback and tire loading control. The 30-inch length and precision spline geometry ensure direct mounting compatibility with sprint car and specialized suspension platforms, while the durable red powder coat protects against corrosion and provides clear identification in the garage or on the trailer. Weighing just 4 pounds, it contributes minimal unsprung mass to your overall package.

Sprint car builders and suspension technicians select SWAY-A-WAY torsion bars for their consistency and repeatability across multiple setups and track conditions. The left-front/right-rear designation makes this bar ideal for asymmetrical anti-roll configurations common in single-seat racing, where front and rear roll stiffness are tuned independently to match chassis geometry and driver preference. Before installation, verify spline compatibility with your specific suspension manufacturer and confirm the 30-inch length matches your frame geometry; improper seating can compromise suspension performance and safety. Keep this bar and its paired component stored in a dry environment to maintain the powder coat finish.