30in Tubular Torsion Bar 1015 Rate Hollow

The MPD Racing 30-inch Tubular Torsion Bar with 1015 rate rating is a precision-engineered suspension component designed for sprint car applications where tunable spring rate and reliability are non-negotiable. This hollow tubular torsion bar delivers the specific spring characteristics necessary for competitive racing, allowing drivers to dial in suspension geometry for track conditions without swapping heavy components between events.

Constructed from chromoly steel and measuring 30 inches in length, this torsion bar features a 1-1/8-inch 48-spline interface for secure chassis mounting. The hollow tubular design minimizes weight while maintaining the structural integrity required for high-load sprint car racing. At 4.4 pounds, the bar contributes minimal unsprung mass to the suspension system, improving responsiveness and reducing tire load variation. The 1015 rate specification provides the resistance curve that many sprint car builders select for mid-range track conditions, offering a balance between compliance and control.

Sprint car teams and fabricators rely on torsion bars to achieve repeatable, adjustable suspension tuning without the expense of purchasing multiple complete suspension assemblies. This 30-inch tubular torsion bar from MPD Racing fits the standard sprint car chassis geometry and spline configuration, making it a direct solution for teams requiring replacement bars, backup components, or testing alternative spring rates. The chromoly construction resists fatigue under the cyclic loading typical of competitive racing while maintaining dimensional stability across a season of use.

Available in natural (uncoated) finish, this torsion bar is shipped ready for installation. Buyers should verify spline compatibility with their specific chassis before ordering, as sprint car suspension geometry and mounting standards vary by sanctioning body and car design.