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Torsion Bar - Sprint Car - 30" Long - Tubular - .925 Rate - Right Front or Left Rear

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SKU 300925T-RFLR

Category: Sprint Car Torsion Bars (Tubular) 

Balance your chassis and improve side-bite with this high-performance 0.925” rate tubular torsion bar. At 30” in length, this bar is specifically engineered for modern Sprint Car chassis that utilize a longer bar to achieve a more linear spring rate and increased travel. The tubular design provides the necessary stiffness for high-speed stability while significantly reducing unsprung weight.

Performance & Fitment

    • Application: Sprint Car (Winged or Non-Wing)

    • Position: Right Front (RF) or Left Rear (LR)

    • Rate: 0.925

    • Diameter: 0.925”

    • Length: 30”

    • Construction: Tubular (Hollow). Removing the dead weight of the center core allows the suspension to react more rapidly to ruts and surface changes, keeping the tire contact patch more consistent than a solid bar.

    • Tuning Profile: * As a Left Rear bar: The 0.925" tubular is a "workhorse" rate for medium-to-slick conditions. It provides enough resistance to prevent over-rotation while maintaining the compliance needed to "hook up" on corner exit.

      • As a Right Front bar: It serves as a firm foundation to control front-end roll, helping to maintain aerodynamic wing angle and steering precision on high-speed circuits.

  • Premium Construction

    • Material: Manufactured from high-strength alloy steel, through-hardened for maximum torsional resilience and fatigue resistance.

    • Precision Manufacturing: Centerless ground to ensure a perfectly consistent outside diameter. This precision is vital for maintaining a repeatable spring rate throughout the bar's life.

    • Heat Treatment: Advanced heat-treating process maximizes "memory" retention, ensuring the bar returns to its original index and resists sagging during long features.

    • Finish: Precision-machined splines ensure a zero-play interface with your torsion arms and stops for immediate chassis feedback.

  • ⚠️ Critical Fitment Exceptions

    To ensure safety and performance, verify that your setup does not fall under these common exceptions:

  • ❌ Length Verification: This is a 30" tip-to-tip bar. Many standard Sprint Car chassis utilize 29" bars. Ensure your torsion tubes and arm spacing are designed for the 30" length before installation.

  • ❌ Rate Comparison: Remember that a 0.925" tubular bar is softer than a 0.925" solid bar. If you are switching construction types, consult a rate chart to ensure you aren't straying too far from your intended wheel rate.

  • ❌ Internal Maintenance: Moisture inside hollow bars can cause internal corrosion, leading to stress fractures. It is highly recommended to keep the internal bore clean and lightly oiled to prevent sudden fatigue failure.

  • ❌ Tube Clearance: Ensure your chassis torsion tubes are straight and free of debris. Any internal binding at this diameter will "lock" the suspension, resulting in erratic handling.

  • ❌ Directional Indexing: Because this bar is indexed specifically for the Right Front or Left Rear, it is critical to install it on the correct side of the car. Installing a directional bar on the "wrong" side (LF/RR) will cause it to lose its rate and sag almost immediately. 

What’s Included

  • (1) Sprint Car Torsion Bar

Warranty

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


180.75 180.75 USD 180.75

180.75

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Sprint Car Torsion Bars