Performance & Fitment

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

  • Length: 30”

  • Diameter: 1.000” (1 inch)

  • Type: Tubular (Hollow). This large-diameter hollow design delivers the massive spring rate required for high-load applications while significantly reducing unsprung weight, improving the suspension's "rebound speed" and tire contact.

  • Rate: 1.000

  • Non-Prestressed: This bar is omni-directional. Because it has not been pre-twisted during manufacturing, it can be used for either Left or Right side applications. This allows for a more natural break-in and a predictable handling profile.

  • Tuning Profile: A 1.000" tubular bar is an aggressive tuning tool. It is typically utilized on the Right Rear for high-speed circuits to prevent the chassis from bottoming out under extreme centrifugal force.

Premium Construction

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

  • Precision Manufacturing: Centerless ground to a strict 1.000" tolerance. This ensures uniform wall thickness—critical for a tubular bar to maintain a perfectly linear and repeatable spring rate.

  • Heat Treatment: Advanced through-hardening optimizes the steel’s "memory," helping the bar maintain its index and resist sagging over time.

  • Spline Quality: Precision-machined splines provide a zero-play interface with torsion arms and stops, ensuring immediate suspension response.

⚠️ Critical Fitment Exceptions

Operating at a 1.000" rate requires precise maintenance and chassis preparation:

• ❌ Settling & Ride Height: Because this bar is non-prestressed, it is more likely to "take a set" (drop in ride height) after its initial heat cycles. You must monitor your chassis heights closely during the first night of racing and adjust your torsion stops to compensate.

• ❌ Maximum Tube Clearance: At a full 1.000" diameter, this bar occupies the maximum space inside a standard torsion tube. Your chassis tubes must be perfectly straight and surgically clean. Any internal binding will "lock" the suspension, resulting in a dangerously erratic handling car that skips or "skates" across the track.

• ❌ Internal Bore Maintenance: Hollow bars are susceptible to internal rust from trapped moisture, which can lead to sudden stress fractures. Keep the internal bore clean and lightly oiled or use protective end caps.

• ❌ Rebound Damping: The 1.000" rate generates significant "snap" on rebound. Ensure your shock valving (specifically rebound) is aggressive enough to control this rate; otherwise, the car will "pogo" and lose traction on corner exit.

• ❌ Length Check: This is a 30" tip-to-tip bar. Verify your chassis requirements, as many standard Sprint Car chassis utilize 29" bars.

• ❌ Hardware Stress: The torque generated by a 1.000" bar is immense. Inspect your torsion arms for "egging" or spline wear; standard aluminum hardware can shear or strip under the massive loads this bar exerts. 

What’s Included

• One torsion bar

Warranty

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

13 in stock (can be backordered)