Radius Arms with Fitting Position Rear Axle

Radius arms are suspension components that control the longitudinal position of the wheel assembly relative to the chassis, resisting the fore and aft forces generated during braking and acceleration and maintaining correct wheel location throughout suspension travel. On suspension systems that use a radius arm rather than a traditional forward control arm, the radius arm is the primary link responsible for preventing the wheel from moving fore and aft under load, and its condition directly affects steering precision, braking stability and caster geometry.

Over time, wear at the ball joint and inner pivot bush allows the wheel to shift outside its correct position, introducing geometry drift, vague handling and uneven tyre wear. Quality replacement radius arm assemblies restore correct longitudinal wheel location, eliminate unwanted movement and deliver reliable, consistent suspension performance across everyday and demanding driving conditions. A practical repair solution for workshops and experienced DIY users across a range of passenger, performance and commercial vehicle applications. Installation guides are available across most products.

Why Upgrade Suspension?

Worn radius arm ball joints and inner pivot bushes allow the front wheel to move fore and aft under braking and acceleration loads, introducing instability, vague steering response and geometry drift that progressively worsens as wear continues. Ball joint wear in the radius arm is a safety-critical failure point that compromises the ability of the front suspension to maintain correct wheel location under all driving conditions.

Replacing a worn or damaged radius arm as a complete assembly, rather than attempting individual bush or ball joint replacement in isolation, restores all pivot and ball joint interfaces to a correct, known standard in a single installation. This ensures the repair is complete, accurate and long-lasting, returning the front suspension to precise, stable and safe performance from the moment of installation.

Radius Arm Range

The radius arm range includes:

• Front Lower Radius Arm Assemblies, Individual: Single left or right front lower radius arm assemblies that restore correct longitudinal wheel location and reliable front suspension performance. Ball joint included on applicable products.
• Front Lower Radius Arm Assemblies, Paired: Two-arm kits supplying both left and right front lower radius arms for a complete front radius arm restoration on applicable vehicle platforms.

Why Purchase Radius Arms?

Allowing worn radius arms to remain in service risks ongoing geometry drift, handling instability and, in the case of advanced ball joint wear, a significant safety risk from the loss of correct front wheel location. Using quality replacement radius arms restores all pivot and ball joint interfaces to a correct, reliable standard and returns the front suspension to precise, stable and safe performance.

For workshops carrying out front suspension repairs, quality radius arm replacement ensures the repair is completed correctly and completely, reducing the risk of recurring geometry issues or front end instability. For vehicle owners and experienced DIY users, replacing worn radius arms with the correct direct-fit alternative ensures the front suspension operates as intended and delivers the handling and safety outcomes expected.

Compatible Vehicles

Radius arms are compatible with a range of vehicles, including:

• Passenger cars, wagons and performance vehicles with independent front suspension systems that use a radius arm or strut tension arm for longitudinal wheel location, requiring replacement as part of routine suspension maintenance or wear repair.
• SUVs and commercial vans requiring front radius arm replacement to restore correct front wheel location and suspension performance.
• Any vehicle experiencing steering vagueness, braking instability or abnormal front tyre wear as a result of worn or damaged radius arm ball joints or inner pivot bushes.

Installation and Support

Radius arms are designed for accurate installation at the front lower radius arm chassis and ball joint mounting positions. Installation times range from approximately one to two hours depending on whether an individual arm or a paired kit is being fitted. Installation guides are available across most products to support both professional workshops and experienced DIY users. For additional technical assistance, a dedicated support team is available to help ensure correct product selection and fitment.

Repair and Upgrade

Radius arms are manufactured from high-strength materials engineered to withstand the longitudinal load, vibration and environmental exposure that front suspension structural components are subject to in everyday and demanding use. Designed as direct repair solutions, each arm restores correct longitudinal wheel location and front suspension geometry across a range of passenger, performance and commercial vehicle applications.

Who Radius Arms Are For

Radius arms are a practical solution for:

• Professional workshops carrying out front end and suspension repairs requiring accurate, complete radius arm replacement across a range of vehicle makes and models.
• Experienced DIY users replacing worn or damaged radius arms to restore correct front wheel location, eliminate play and return safe, precise handling and braking performance.
• Anyone experiencing steering vagueness, front end instability under braking or abnormal front tyre wear as a result of worn radius arm ball joints or bush wear requiring a complete arm replacement.

The right radius arm restores correct longitudinal wheel location, eliminates unwanted movement and delivers more precise, stable and safe front suspension performance every time.

Shop Radius Arms

Explore the full radius arms range and find the right solution for your vehicle. With individual left and right front lower radius arm assemblies and paired kits across a range of passenger, performance and commercial vehicle applications, you can restore correct front wheel location and complete every radius arm repair with confidence.