Giving you the clearance to challenge any terrain.

Getting the ultimate lift kit for your 4×4 has never been easier. Unique Off-Road Concepts are global leaders in Portal Axle innovation, design and installation. Dominate any terrain with comfort and style!

FIND OUT MORE

Portal axles are an off-road technology for the serious off-road enthusiast!

With higher ground clearance and improved reliability, this robust technology will turn any off-road drive into an adventure!

Traditionally used for military, farming and construction applications, Unique Off-Road Concepts proudly brings this to the 4×4 market.

HOW PORTAL AXLES WORK

Portal axles are an off-road technology for the serious off-road enthusiast!

With higher ground clearance and improved reliability, this robust technology will turn any off-road drive into an adventure!

Traditionally used for military, farming and construction applications, Unique Off-Road Concepts proudly brings this to the 4×4 market.

HOW PORTAL AXLES WORK

How Portal Axles work

The standard axle found on a Bakkie or SUV runs straight into the wheel. For vehicles with large wheels that need to perform under extreme conditions, this design places too much pressure on the axles and CV Joints. Military and commercial vehicles started using portal axles to remedy this problem and now off-roaders are enjoying the benefits too.

The tube of a portal axle sits above the centre of the wheel hub. Connecting this tube with the wheel is a hub that contains reduction gears. Small gears are driven by the axle, and these gears in turn rotate a larger gear that turns the wheel. By transferring the torque in this way from a small axle to a large gear in the hub, the axle torque can be increased by around 200%, while keeping the stress on the axle low.

WHY USE PORTAL AXLES?

How Portal Axles work

The standard axle found on a Bakkie or SUV runs straight into the wheel. For vehicles with large wheels that need to perform under extreme conditions, this design places too much pressure on the axles and CV Joints. Military and commercial vehicles started using portal axles to remedy this problem and now off-roaders are enjoying the benefits too.

The tube of a portal axle sits above the centre of the wheel hub. Connecting this tube with the wheel is a hub that contains reduction gears. Small gears are driven by the axle, and these gears in turn rotate a larger gear that turns the wheel. By transferring the torque in this way from a small axle to a large gear in the hub, the axle torque can be increased by around 200%, while keeping the stress on the axle low.

WHY USE PORTAL AXLES?

Why use
Portal Axels?

There are many benefits to using portal axles but what excites off-roaders most is:

SEE ALL BENEFITS
Increased vehicle
ground clearance
Allows for central tyre
inflation system
Enhanced vehicle
robustness

These key benefits minimise breakdowns and dramatically enhance your vehicles performance
allowing you to enjoy those grade five trails with no fuss and all the power!

To top it all off, with the ability to install a CTIS (Central Tyre-inflation System) you could have control over the air pressure in each tyre individually, allowing you to navigate a variety of different terrains with maximum manoeuvrability.

Why use Portal Axels?

There are many benefits to using portal axles but what excites off-roaders most is:

SEE ALL BENEFITS
Increased vehicle
ground clearance
Allows for central tyre
inflation system
Enhanced vehicle
robustness

These key benefits minimise breakdowns and dramatically enhance your vehicles performance allowing you to enjoy those grade five trails with no fuss and all the power!

To top it all off, with the ability to install a CTIS (Central Tyre-inflation System) you could have control over the air pressure in each tyre individually, allowing you to navigate a variety of different terrains with maximum manoeuvrability.

Benefits of Portal Axles

Ability to fit 35″ tyres without losing torque by adjusting gear ratio’s inside the Portals.

Combined +-167mm (just over 6”) lift (with Portals and 35’s)

Central Tire Inflation System (CTIS) incorporated.

Optional fitment of CTIS. Our Portals are designed so that CTIS can be installed at a later stage without any modifications, only additions required.

Increased ground clearance – A set of portal axles will raise your whole vehicle, including diffs and axles,by about 117mm (just over 4”) while your diffs and axles remain in the standard manufacturers positions relative to the chassis and / or bodywork. e.g. no change in driveshaft, cv joint , steering column, or suspension part angles.

Pressure Reduction on the drive train – The portal axle gears reduce the torque on the drivetrain which reduces the load and the pressure of increased tyre size.

Handling vs suspension lift – Portal axles increase the off-road capability of a vehicle because they maintain the manufacturers original suspension geometry.

Disadvantages of Portal Axles

Not a DIY project – Portal axles need to be installed by a professional who may need to perform other vehicle adjustments, such as upgrading brakes and extending brake lines, in order to fit the axle correctly. Incorrect assembly or installation can be a safety issue and end up costing you extra to fix.

Benefits of CTIS

Continuous vehicle movement while inflating or deflating, you no longer have to get out of your vehicle to change tyre pressures.

Increased traction and mobility over a variety of terrains.

Fully automatic system.

Small leakage compensation and correction.

Management of individual tyre pressures.

Automatic inflation of tyres depending on vehicle speed.

Benefits of driving with the correct tyre pressures

Improved handling.

Improved vehicle stability.

Increase fuel efficiency.

Increase tyre life.

Decrease driveline wear.

Benefits of Portal Axles

Ability to fit 35″ tyres without losing torque by adjusting gear ratio’s inside the Portals.

Combined +-167mm (just over 6”) lift (with Portals and 35’s)

Central Tire Inflation System (CTIS) incorporated.

Optional fitment of CTIS. Our Portals are designed so that CTIS can be installed at a later stage without any modifications, only additions required.

Increased ground clearance – A set of portal axles will raise your whole vehicle, including diffs and axles,by about 117mm (just over 4”) while your diffs and axles remain in the standard manufacturers positions relative to the chassis and / or bodywork. e.g. no change in driveshaft, cv joint , steering column, or suspension part angles.

Pressure Reduction on the drive train – The portal axle gears reduce the torque on the drivetrain which reduces the load and the pressure of increased tyre size.

Handling vs suspension lift – Portal axles increase the off-road capability of a vehicle because they maintain the manufacturers original suspension geometry.

Disadvantages of Portal Axles

Not a DIY project – Portal axles need to be installed by a professional who may need to perform other vehicle adjustments, such as upgrading brakes and extending brake lines, in order to fit the axle correctly. Incorrect assembly or installation can be a safety issue and end up costing you extra to fix.

Benefits of CTIS

Continuous vehicle movement while inflating or deflating, you no longer have to get out of your vehicle to change tyre pressures.

Increased traction and mobility over a variety of terrains.

Fully automatic system.

Small leakage compensation and correction.

Management of individual tyre pressures.

Automatic inflation of tyres depending on vehicle speed.

Benefits of driving with the correct tyre pressures

Improved handling.

Improved vehicle stability.

Increase fuel efficiency.

Increase tyre life.

Decrease driveline wear.

Installation

UOC offers portals that can be bolted onto the final flange of an axle tube, which keeps your standard axles in place, but modifies them to become portal axles.

For the complete installation, bring your vehicle to our fitment centre today!

GET A QUOTE

Installation

UOC offers portals that can be bolted onto the final flange of an axle tube, which keeps your standard axles in place, but modifies them to become portal axles.

For the complete installation, bring your vehicle to our fitment centre today!

GET A QUOTE

Get the ultimate lift kit for your 4X4 with a Portal Axle installation from Unique Offroad Concepts

Get the ultimate lift kit for your 4X4 with a Portal Axle installation from Unique Offroad Concepts

GET IN TOUCH TODAY!

High Speed Unimog 406/416
Portal Gears

In South Africa the 416 Unimog is a popular choice to be used as a platform for a 4×4 camper. Initially the Unimog was not designed for this purpose, but rather as a heavy-duty utility and farming vehicle. Inherently the Unimog is slow and does not provide efficient and comfortable driving on highways.

We have developed a set of high-speed Portal Hub Gears with a ratio of 15:25 that will improve the Unimog speed by 24%. A standard set of gears has a ratio of 13:27.

These gears are professionally built in South Africa by a company specialising in the design and fabrication of automotive gearboxes and drive lines.

The upgrade driver gear, or “bull” gear is designed to enable installation with a bigger outer bearing that is used on later Unimog models. The bigger outer bearing ensures longer gear life under heavier loads.

The tables below indicates the increase in speed /rpm provided by the Portal Hub Gears for a Unimog fitted with 12.5 and 14.5 Tyres:

Tyre Size 12.5
Gear Teeth Ratios
13:27
Standard		 15:25
Upgrade
RPM km/h km/h
2000 69 86
2100 72 90
2200 76 94
2300 79 99
2400 83 103
2500 86 107
2600 90 112
2700 93 116
2800 96 120
Tyre Size 14.5
Gear Teeth Ratios
13:27
Standard		 15:25
Upgrade
RPM km/h km/h
2000 74 93
2100 78 97
2200 82 102
2300 86 107
2400 89 111
2500 93 116
2600 97 121
2700 101 125
2800 104 130
Benefits Include:

Reduced Engine RPM at cruising speed.

Reduced noise levels at higher speed.

Better highway handling.

Increased fuel efficiency.

Disadvantages:

The Portal Hub Outer Casing requires minor modification to enable fitment of the new Pinion Gear.

High Speed Unimog 406/416
Portal Gears

In South Africa the 416 Unimog is a popular choice to be used as a platform for a 4×4 camper. Initially the Unimog was not designed for this purpose, butrather as a heavy-duty utility and farming vehicle. Inherently the Unimog is slow and does not provide efficient and comfortable driving on highways.

We have developed a set of high-speed Portal Hub Gears with a ratio of 15:25 that will improve the Unimog speed by 24%. A standard set of gears has a ratio of 13:27.

These gears are professionally built in South Africa by a company specialising in the design and fabrication of automotive gearboxes and drive lines.

The upgrade driver gear, or “bull” gear is designed to enable installation with a bigger outer bearing that is used on later Unimog models. The bigger outer bearing ensures longer gear life under heavier loads.

The tables below indicates the increase in speed /rpm provided by the Portal Hub Gears for a Unimog fitted with 12.5 and 14.5 Tyres:

Tyre Size 12.5
Gear Teeth Ratios
13:27
Standard		 15:25
Upgrade
RPM km/h km/h
2000 69 86
2100 72 90
2200 76 94
2300 79 99
2400 83 103
2500 86 107
2600 90 112
2700 93 116
2800 96 120
Tyre Size 14.5
Gear Teeth Ratios
13:27
Standard		 15:25
Upgrade
RPM km/h km/h
2000 74 93
2100 78 97
2200 82 102
2300 86 107
2400 89 111
2500 93 116
2600 97 121
2700 101 125
2800 104 130
Benefits Include:

Reduced Engine RPM at cruising speed.

Reduced noise levels at higher speed.

Better highway handling.

Increased fuel efficiency.

Disadvantages:

The Portal Hub Outer Casing requires minor modification to enable fitment of the new Pinion Gear.