Performance & Fitment

• • Application: Unlimited Off-Road Race Cars, Custom VW Drag Rails, and Mid-Engine Sand Cars.

  • Length: Custom Ordered. These bars are manufactured to your specific housing width requirements, ensuring a perfect fit for widened or narrowed chassis.

  • Diameter: Custom Rated. Available in various diameters to achieve the exact spring rate your vehicle's weight and leverage ratio demand.

  • Spline Configuration: Features the industry-standard 40-tooth and 44-tooth precision-cut splines. This configuration allows for fine-tuning of ride height by indexing the inner and outer splines (often referred to as "degreeing the bars").

Premium Construction

• • Material: 300M Alloy Steel. Widely considered the "gold standard" for racing torsion bars, 300M offers a much higher tensile strength and superior ductility compared to standard chromoly. This allows the bar to twist further and return to its original shape without snapping or permanently deforming.

  • Pre-Stressed (Set): Each bar undergoes a factory pre-stressing process. By twisting the bar beyond its operating range during manufacturing, we eliminate "initial sag." Your car will maintain its ride height from the first lap to the last.

  • Centerless Ground: The body of the bar is ground to a mirror finish to remove all surface imperfections. In high-performance applications, even a tiny scratch can become a stress riser that leads to a catastrophic break; our precision grinding mitigates this risk.

  • Heat Treatment: Optimized through-hardening provides maximum "spring energy" storage, ensuring the suspension remains responsive and lively.

🛠️ Custom Racing Setup Tips

When ordering and installing custom 300M bars, precision is mandatory for performance:

• ❌ Directional Requirement: Because these bars are Pre-Stressed, they are Directional. They are typically marked with an "L" or "R." Swapping them will cause the bar to untwist against its grain, leading to immediate sagging and potential failure.

• ❌ Calculating Rate: When moving to 300M, ensure you have calculated your effective spring rate based on your arm length. A bar that is too stiff will result in a "skating" sensation, while one too soft will cause the chassis to frame-out on high-speed G-outs.

• ❌ Spline Maintenance: Always use a high-quality anti-seize or moly-grease on the 40/44 splines. In the harsh environment of off-road racing, moisture and silt can seize these components, making it impossible to adjust ride height or service the torsion housing.

• ❌ Housing Clearance: Ensure your custom torsion housing is free of slag or debris. A 300M bar needs room to "grow" slightly in diameter as it twists; any internal contact with the housing will cause binding and heat build-up. 

What’s Included

• (1) Pair of custom-order torsion bars

Warranty

Backed by a 1-year warranty for peace of mind.