Superior Engineering Dropped 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.

Get an LS/VSB Data pack for easy engineer approval of this product

NOTE: To fit Sway Bar Mounts you will require 85mm sway bar mounts and bushes.
\ If you do not have sway bar mounts or you have 75mm mounts you can purchase the required ones below.\
85mm Sway Bar Mount
\ Sway Bar Bushes to suit 85mm Mounts

Benefits of Superior 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
\
• 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
\
• Allows vehicle to track correctly on road due to correct caster
\

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.

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

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

Below is a video of Nissan Patrol GU passing an LT2 Lane Change Test with ease, this test shows the Patrol passing the test loaded to GVM at 110km/h.
\ Proof that Superior Engineering Superflex and Radius Arms can still handle when on-road as well as the added flex off-road.

​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

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