Radius Rod 5/8in Alum 12-1/2in Black

The Radius Rod 5/8in Alum 12-1/2in Black from ALLSTAR PERFORMANCE is a precision-engineered suspension tube engineered for street, strip, and circle track chassis fabrication. Built for fabricators and performance enthusiasts who demand repeatable geometry and durability, this aluminum radius rod serves as a critical control arm component in custom suspension systems. Whether you're building a dedicated race car, restoring a classic hot rod, or dialing in a street machine, a quality radius rod ensures predictable handling characteristics and maintains precise wheel alignment under acceleration and cornering loads.

Machined from aluminum and finished in protective black anodize, this 12-1/2 inch radius rod features a 1.125 inch outer diameter tube with 5/8-18 inch female threads for secure fastening at both pivot points. The aluminum construction delivers a superior strength-to-weight ratio compared to steel alternatives, reducing unsprung mass without sacrificing rigidity—a key advantage in suspension tuning where reduced mass improves wheel compliance and response. The 5/8-18 inch female threading accepts standard adjustable rod ends or spherical bearings, allowing mechanics to fine-tune suspension geometry and anti-squat/anti-dive characteristics during setup and calibration.

This radius rod is ideal for fabricators building independent front suspension (IFS) systems, four-link rear suspensions, and ladder-bar configurations on drag cars and street rods. Its compact 12-1/2 inch length accommodates tight packaging constraints in custom frames while the lightweight aluminum construction proves invaluable in weight-sensitive racing applications. Installation requires standard shop tooling and compatible rod ends (sold separately); ensure thread fit is verified before final assembly. Proper geometry setup using this component, paired with quality fasteners and bearing surfaces, unlocks superior handling, reduced tire wear, and repeatable suspension performance across countless builds.