Performance & Fitment

• • Application: Dirt Modified (Big Block/Small Block)

  • Position: Right Rear (RR)

  • Rate: 0.900

  • Diameter: 0.900"

  • Length: 29”

  • Tuning Profile: The 0.900" rate is a staple for Modified racers looking for a balanced rear setup. In the Right Rear position, this bar helps control chassis roll and provides a consistent "load" to the tire, improving traction on tracks ranging from slick-to-tacky to medium-heavy.

Premium Construction

• • Material: Manufactured from solid high-strength alloy steel for maximum torsional fatigue resistance and long-term durability.

  • Precision Manufacturing: Centerless ground to a strict 0.900" diameter. This ensures an exact, repeatable spring rate, allowing you to trust your chassis adjustments when swapping bars between heats.

  • Heat Treatment: Through-hardened and pre-stressed to maintain "memory" retention. This process prevents the bar from "taking a set" or sagging, ensuring your ride height remains consistent throughout a multi-day event.

  • Spline Integrity: Precision-machined splines provide a tight, zero-play fit with torsion arms and stops, ensuring the driver feels every adjustment and track change.

⚠️ Critical Fitment Exceptions

Before installing, verify that your racing setup does not fall under these common exceptions:

• ❌ Incorrect Chassis Length: This is a 29" tip-to-tip bar. It is designed for standard Dirt Modified chassis and will not fit Sprint Cars or Mini Sprints that utilize 26" or 30"+ bars.

• ❌ Position Specificity: While this bar can physically fit other corners, it is specifically rated and indexed for Right Rear loads. Using a bar with an incorrect rate for the Left Rear can cause the car to "bicycle" or fail to rotate in the center of the corner.

• ❌ Binding Hazards: Ensure your chassis torsion tubes are clean, greased, and perfectly straight. A 0.900" bar has a specific clearance profile; any internal binding or contact with the tube wall will create an "infinite" spring rate, leading to unpredictable handling and potential bar failure.

• ❌ Spline Wear: Never install a high-performance bar into worn or "egged out" torsion arms. Mismatched or sloppy splines will rapidly degrade the bar’s ends, leading to stripped splines under high-torque racing loads. 

What’s Included

• One torsion bar

Warranty

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

3 in stock (can be backordered)