This is a pair of heavy duty Superior Engineering dropped Radius Arms Suitable For Land Rover Discovery (Series 1) and Land Rover Defender 90/110/130 with a standard height lift.

Superior Engineering has developed the ultimate in Drop Radius Arms for Landover's.

Designed and Manufactured to take your vehicles offroad driving performance to a new level! And the visual appearance of these new Radius Arms make a statement like no other.

Our Radius arms not only correct castor angles after performing a suspension lift, but also utilise standard OE spec Nissan Patrol rubber bushes in the Radius arms.

These features allow for increased Articulation as well as better road manners and eliminate the need to use expensive Poly aftermarket bushes that are considered inferior to OE style rubber bushes.

The Superior Engineering Radius Arm design will also permit you to run a Superior Engineering Radius arm Spacer washers to push the front diff forward, increasing clearance and achieving a better Approach angle.

Superior Engineering supplies all of our radius arms with the Rubber bushes pressed in for your convenience, and you will also be supplied with genuine Nissan rear radius arm bushes and washers.

Benefits of Superior Drop Radius Arms

• Manufactured from 32mm High Tensile Plate
• High Tensile main Pivot Bush pin
• 16mm UNF fine thread
• Rubber Bushes pre-fitted into arms
• Laser cut and CNC machined to precise measurements and caster location
• Authentic Superior Engineering Logo CNC machined into side of Arms
• Manufactured Suitable For various lifts
• Sand blasted with rust prevention applied
• Powder Coated for maximum durability and finish
• High Tensile Plate for the ultimate in durability, will not crack like Cast Radius Arms

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.

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