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Get More Flex

Get More Flex

MICHAEL HAYES TALKS ABOUT IMPROVEMENTS IN RADIUS ARM TECHNOLOGY TO SUIT YOUR 4WD.

When it comes to front suspension in tough off-road performers such as Patrols and LandCruisers, radius arms seem to be the most common type of suspension, and while perfect for on-road performance, axle articulation off-road is limited due to link or bush binding; a problem inherent with this system. As one wheel pushes upward the other droops, which causes the links to twist the housing along its axis, much like a torsion bar.

Superior Engineering SuperFlex Arms are a blend of two different styles of arm, each complementing the angles of deflection required for controlled flex. The idea is to change the planes of deflection to allow more travel and reduce the binding of the bushes. The ability to maintain excellent driveability is the key to success in the SuperFlex radius arm system.

Another feature is the transfer of torque back into the chassis

to reduce the sway that a link or pivoting radius arm set-up can produce. The changes in bush type and orientation on the SuperFlex arm allow an increase in controlled deformation of the bushes. Adapter plates change the bush position, which provides a larger range of flex before binding, while still providing adequate 'feel' back into the chassis.

Figure 1 : Michael Hayes

talking about improvements in radius arm technology

Radius Arms Flex

As radius arms flex, they subject the bushes to a converging load, tearing the bonding and causing premature failure. With the SuperFlex arm, the bushes are mounted in a vertical plane, which has a much greater range of motion and therefore allows the suspension bushes to pivot with reduced restriction and less side loading, increasing component life.

The arms themselves are also designed with accurate caster correction built into the design, alleviating any load on the bushes, further increasing suspension life and aiding in correct steering geometry.

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Another breakthrough in radius arm technology

is combining the benefits of the SuperFlex Arm and the improved high-speed handling of a drop-box style mounting on Nissan Patrols. This feature allows the arms the ability to soak up the bumps and keep the wheels planted without sacrificing the articulation that SuperFlex arms can provide.

Figure 2 : A top quality aftermarket radius arm

will offer increased articulation

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Drop Box Mounting

A newly developed drop box mounting for GU and GQ Patrols, which is nearly 20% lower profile than any other on the market, mounts the specially designed radius arms (standard or SuperFlex) that are substantially longer than a factory arm, further increasing articulation and handling. The rear arm bushing has also been upgraded to a radial-type bush rather than the failure prone pin-type mount.

Figure 3 : Aftermarket radius arm

verse factory radius arm side by side comparison

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Superior Engineering SuperFlex Arms

Superior Engineering SuperFlex Arms are all designed around a complete bolt-on set-up and are easily engineer-approved in most states.

They are designed to maximise front suspension travel and are optimised to work with most long-travel shocks and springs. The arms come 'ready to fit' with full OE-style rubber bushes pressed in, SuperFlex-adapter plates and all the required bolts and fitting instructions.

SuperFlex Radius arms and Hybrid Arms are Australian made and manufactured from Australian 350-grade steel, then CNC-machined for precise caster location and powdercoated for maximum durability and highest-quality finish. They are available to suit all popular lift sizes from standard height to 6in and to fit many Nissan, Toyota and Land Rover models.

For More Information Call Our Sales Team On

(07) 5433 1411