Radius Arms
Find Your Perfect Radius Arm
Answer a few quick questions and we'll recommend the best Superior Engineering Radius Arm setup for your driving style, lift height and vehicle usage.
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Your Recommended Radius Arms
See below our Radius Arms suggestions for you, based on your answers. We have a range of arms you can browse below, Compare each arm or start the questions again for a new suggestion. *Some options may not be available for all makes and models.



Superior Engineering Radius Arms
are generally used on competition trucks where maximum ground clearance is needed, although a trend is growing in Australia to fit these Radius arms into non-competition Vehicles.

Heavy Duty Materials
Radius Arm manufactured from 32mm Steel Plate.
Superior Engineering Logo
Engraved logo so you know you have a genuine Superior Engineering part.
Powder Coated Finish
Hard wearing silver powder coat finish.
Correct Castor For Lift
The correct amount of castor for each lift height built in to the arm design.
Precision Flame Cut
All plates are CNC flame cut then machined for precise fitment.
Benefits of Superior Radius Arms
- Manufactured from High Tensile Plate
- High Tensile Bar Bush Eyes
- Massive 32mm main Beam thickness for maximum strength
- Rubber Bushes pre-fitted into arms
- Laser-cut to precise measurement and caster location
- Authentic Superior Engineering Logo machined into the side of Arms
- They are manufactured Suitable For various lifts
- Sandblasted with rust prevention applied
- Powder Coated for maximum durability and finish
- Allows vehicle to track correctly on road due to correct caster




Maximum Strength. Lightweight Performance.
Precision machined from aerospace-grade 7075-T6 alloy, these radius arms are designed for serious off-road performance and high-speed applications.
Ideal for racers and drivers wanting to reduce unsprung weight while maintaining exceptional strength and rigidity.

Billet Alloy Construction
Aerospace-grade 7075-T6 aluminum for maximum strength-to-weight ratio.
CNC Machined
Precision tolerances ensure perfect fitment and performance.
Lightweight Design
Reduced unsprung weight improves handling and fuel economy.
Anodized Finish
Durable protective coating resists corrosion and wear.
Performance Mount
Optimized mounting points for racing applications.
Benefits of Superior Billet Series 7075-T6 Alloy Radius Arms
- High strength billet 7075 – T6 profile (significantly stronger than OE arms) is CNC machined for millimetre precision and the lowest possible weight.
- Lightweight 7075-T6 aluminium allows increased arm thickness while still being stronger and lighter than aftermarket BIS80 or 4150 “H” beam style arms.
- Retains OE bushings for strength, reliability and driving comfort.
- Oversized billet main beam section is CNC machined to maximise Articulation while increasing strength.
- Vehicle specific Lift height arms for correcting caster, tyre clearance and reducing driveline vibration.
- Our unique beam section Solid Billet design eliminates bending or deformation.
- Impact resistance 7075-T6 aluminium has the reputation amongst the strongest grade aluminium alloy delivering a similar level of strength as many high strength steels while remaining a corrosion resistant and lightweight metal.
- Lightweight, high strength arms reduce diff and suspension weight allowing for improved ride and handling, taking stress off the shocks and springs for a smoother drive.
- 7075-T6 alloy will never rust or fatigue, so you can be confident in years of hassle-free driving.
- They look Amazing! The alloy arm has that precision CNC machined look in a stunning silver anodised finish.
- 7075-T6 alloy will never rust or fade, so you can rest assured those stunning arms will look great for a long time, without the typical fading or discoloration normally associated with painted or powdercoated arms.




Superior Hybrid Radius Long Arms with Drop Box
Superior Hybrid Radius Long Arms with Drop Box suitable for Nissan Patrol GQ and GU (Gen 2) are designed to correct suspension castor, ride quality, articulation, and tyre clearance on lifted vehicles. Combining extra-long hybrid radius arms with heavy-duty drop boxes to create one of the most advanced Patrol front radius arms available.
As lift height increases, the factory radius arm geometry becomes increasingly compromised. This can result in a harsher ride, reduced suspension travel, increased bush loading, poor caster characteristics, and limited tyre clearance. While conventional caster correction arms help address some of these issues, they still leave the radius arms operating at steep angles that restrict suspension performance.
The Superior Hybrid Long Arm System addresses the problem from both ends. The combination of extra-long radius arms and chassis-mounted drop boxes helps restore suspension geometry, allowing the suspension to cycle more naturally through its travel while improving ride comfort, articulation, and overall vehicle stability.
One of the standout features of these arms is its adjustable axle positioning. Using the supplied spacers, the front differential can be positioned from the factory location up to 16mm further forward. This additional adjustment helps create valuable clearance from the vehicles body, particularly on vehicles running larger tyres, while also allowing builders to fine-tune wheel placement within the guard opening.

Longest hybrid long arm design
on the market while retaining OEM-style crossmember compatibility.
Adjustable axle position
from factory location up to 16mm forward, improving clearance for larger tyre combinations.
Massive 32mm thick main beam
construction manufactured from high-tensile Bisalloy 80 / Strenx700 plate.
Drilled and tapped
for factory or SuperFlex sway bar fitment with added mounting provisions for factory ABS lines.
High-tensile bush eyes
for extreme articulation durability with pre-fitted genuine Nissan and Toyota bushes.
Heavy-duty hybrid drop boxes
with increased 6-bolt mounting surface.
Supplied with all required hardware
and fitting instructions.
Unlike many other long-arms on the market, the Superior Hybrid design retains the OEM crossmember location. This allows owners to continue using factory-style heavy-duty replacement crossmembers or engine-conversion-specific crossmembers without needing extensive modifications. The extended arm length also improves suspension operation by reducing the angular change throughout wheel travel.
Manufactured from high-tensile Bisalloy 80 / Strenx700 plate, these are among the strongest hybrid long arms available. The massive 32mm thick main beam construction, high-tensile bush eyes, and reinforced drop box design provide exceptional durability in extreme conditions. Combined with the increased tie rod clearance, high-articulation bush design, and hybrid drop box configuration, the result is a Patrol that performs exceptionally both on-road and off-road.




Flexibility Meets Strength
Designed for lifted touring and hard wheeling vehicles requiring increased articulation and suspension movement.
The SuperFlex Radius Arms provide improved suspension geometry, caster correction and better off-road flex compared to standard style arms.

Precision Flame Cut
All plates are CNC flame cut then machined for precise fitment.
Heavy Duty Materials
Radius Arm manufactured from 32mm steel plate and the Superflex plate is cut from 10mm steel plate.
Sold as a Matching Pair
Driver and passenger side arms are paired during manufacture.
Correct Castor for Lift
The correct amount of castor for each lift height built into the arm design.
Superior Engineering Logo
Engraved logo so you know you have a genuine Superior Engineerig Part.
Powder Coated Finish
Hard wearing silver powder coat finish.
Benefits of Superior Engineering SUPERFLEX Drop Radius Arms
- Manufactured from High Tensile Plate
- High Tensile Bar Bush Eyes
- Massive 32mm main Beam thickness for maximum strength
- Rubber Bushes pre-fitted into arms
- Laser-cut to precise measurement and caster location
- Authentic Superior Engineering Logo machined into the side of Arms
- Factory Sway bar will fit to allow safe on road handling
- The Brackets to fit the sway bar and extensions are supplied at no extra cost
- They are manufactured Suitable For various lifts
- Sand blasted with rust prevention applied
- Powder Coated for maximum durability and finish
- High Tensile Plate will not crack unlike Cast Radius Arms
- Adapter plates and bolts have a SA5 Zinc coating for rust prevention
- Allows vehicle to track correctly on road due to correct caster
- Maximum Clearance between the Tie Rod and the Radius Arms
- Factory bushes fit the SUPERFLEX ARMS, We don't use special sizes Bushes
- Superior Engineering's Superflex arms are a Patented Design
- Patent No's. 2008202797, 2012203220, 2012232947
- 100% money back Guarantee if you don't get more flex than your original or aftermarket Radius Arms!




Extreme Articulation
Built for hardcore off-road use and rock crawling where maximum articulation and suspension travel are essential.
HyperFlex arms deliver superior movement capability while maintaining control and durability in demanding terrain.

Precision Flame Cut
All plates are CNC flame cut then machined for precise fitment.
Heavy Duty Materials
Radius Arm manufactured from 32mm steel plate and the Superflex plate is cut from 10mm steel plate.
Sold as a Matching Pair
Driver and passenger side arms are paired during manufacture.
Correct Castor for Lift
The correct amount of castor for each lift height built into the arm design.
Superior Engineering Logo
Engraved logo so you know you have a genuine Superior Engineerig Part.
Powder Coated Finish
Hard wearing silver powder coat finish.
Benefits of Superior Engineering HYPERFLEX Drop Radius Arms
- Manufactured from High Tensile Plate
- High Tensile Bar Bush Eyes
- Massive 32mm main Beam thickness for maximum strength
- Rubber Bushes pre-fitted into arms
- Laser-cut to precise measurement and caster location
- Authentic Superior Engineering Logo machined into the side of Arms
- (Factory Sway bar will fit to allow safe on-road handling)
- The Brackets to fit the sway bar are supplied at no extra cost
- They are manufactured Suitable For various lifts
- Sandblasted with rust prevention applied
- Powder Coated for maximum durability and finish
- High Tensile Plate will not crack unlike Cast Radius Arms
- Adapter plates and bolts have a SA5 Zinc coating for rust prevention
- Allows vehicle to track correctly on road due to correct caster
- Maximum Clearance between the Tie Rod and the Radius Arms
- Factory bushes fit the HYPERFLEX ARMS, We don't use special sizes Bushes
- Superior Engineering's Super flex arms are a Patented Design
- Patent No's. 2008202797, 2012203220, 2012232947
- 100% money-back Guarantee if you don't get more flex than your original or aftermarket Radius Arms!




Maximum Articulation
The Hybrid 5-Link setup is designed for extreme performance, delivering exceptional articulation, handling and control both on and off-road.
Ideal for serious rock crawling, competition vehicles and aggressive off-road driving styles.

Rubber Bushes
Pre-fitted into arms.
Massive 32mm BIS80
Main Beam thickness for maximum strength.
Laser-cut
To precise measurement and caster location.
Authentic Superior Engineering Logo
Machined into the side of Arms.
Powder/Zinc Coated
For maximum durability and finish.
Benefits of Superior Radius Arms
- Manufactured from High Tensile Plate
- High Tensile Bar Bush Eyes
- Massive 32mm main Beam thickness for maximum strength
- Rubber Bushes pre-fitted into arms
- Laser-cut to precise measurement and caster location
- Authentic Superior Engineering Logo machined into the side of Arms
- They are manufactured Suitable For various lifts
- Sandblasted with rust prevention applied
- Powder Coated for maximum durability and finish
- Allows vehicle to track correctly on road due to correct caster

Compare Radius Arms








Superior Radius Arms

Billet Series

Hybrid Long Arms

SuperFlex

HyperFlex
