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Superior Engineering SUPERFLEX Radius arms were designed in 2008 for Competition Trucks to benefit from maximum articulation as well as Excellent High Speed Handling as well.

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Since their introduction to the Australian and overseas market there has been a huge trend towards choosing Superior Engineering SUPERFLEX Arms over the standard Radius Arm design.

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NOTE: Due to a change in the chassis width of the 2017 on 76/78/79 series these arms will not fit,
\ if you have a 2017 on model please refer to the image below to see if your vehicle is suitable for fitment of these arms.
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Why not have extra flex as well as good on road handling?

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Benefits of Superior Engineering SUPERFLEX Drop Radius Arms

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• Manufactured from High Tensile Plate
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• High Tensile Bush Eyes
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• Massive 32mm main Beam thickness for maximum strength
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• Rubber Bushes pre- fitted into arms
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• Laser cut to precise measurement and caster location
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• Authentic Superior Engineering Logo machined into side of Arms
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• (Factory Sway bar will fit to allow safe on road handling)
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• The Brackets to fit the sway bar are supplied at no extra cost
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• They are manufactured Suitable For various lifts
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• Sand blasted with rust prevention applied
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• Powder Coated for maximum durability and finish
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• High Tensile Plate will not crack unlike Cast Radius Arms
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• Adapter plates and bolts have a SA5 Zinc coating for rust prevention
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• Allows vehicle to track correctly on road due to correct caster
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• Maximum Clearance between the Tie Rod and the Radius Arms
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• Factory bushes fit the SUPERFLEX ARMS, We don't use special sizes Bushes
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• Superior Engineering's Super flex arms are a Patented Design
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• Patent No's. 2008202797, 2010100451, 2011904187
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• 100% money back Guarantee if you don't get more flex than your original or aftermarket Radius Arms !
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Fig. 1 shows the Superior Arm deflecting only 4.1mm under load with real world load points.
\ Fig. 2 shows the Competitor's Arm deflecting 24.91mm under the same load points and loads, almost the same as the width of the Arm itself.
\ Also of note is the Competitor's Arm deflected to a point that may cause metal fatigue over time, which may lead to total failure.

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Cast radius arms are more vulnerable to breaking, leaving your vehicle undrivable and you stranded.

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In the event of a major crash or major impact Superior Engineering Radius arms may bend but will never crack and fail

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Note: Factory bump stops may need to be extended depending on the coils and shock combination used.
\ Due to the huge variances in different weights of vehicles / heights variances and suspension combinations in
\ vehicles it is highly recommended to move your suspension in the full range of the
\ shock absorber compression / rebound travel and also taking into consideration coil bind,
\ check all areas for clearance issues ,if you require more assistance in this talk to one of our sales team for further advice

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Check out more information https://www.superiorengineering.com.au/the-science-behind-superflex-arms

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Below is a comparison chart showing different forms of Castor correction and how they compare in Cost, Flex, Handling and Offroad Ability.

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