Portal Axles Tibus – Off Road Engineering

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Here’s a good idea for all of you hard core off roaders- BoltOn Portal Axles.

So let’s start from the beginning, what are portal axles? 
Portal axles (or portal gear) are an offroad technology where the axle tube is above the center of the wheel hub and where there is a reduction gearbox in the hub.
Ground clearance is increased and the hub gearing allows the axle halfshafts to drive the same power but at reduced torque (by using higher shaft speed). This reduces load on the axle crownwheel and differential.

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Bolt On Portal Axles by Tibus off road engineering are portals which can be attached to existing axles.
Portals are developed to maintain the rotational direction of the original axle which is achieved by using 4 gears inside the drop box.

portal axles

Another advantage of 4 gears is the optimal distribution of torque on more gears.
Due to this fact a higher torque can be transmitted inside the drop box and temperature development is improved.

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By installing Tibus axles, vehicle height is increased 5″ (125mm) or 4″ (100mm).
This height increase allows you to mount larger tyres without changing your suspension or even cutting your body work.
Axle and steering geometry stays untouched.

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To achieve this gain of ground clearance without portals you would have to mount 10″ bigger tyres.
This would mean more than cutting into your car´s body panels as most axles wouldn´t have the strength to handle these tyre sizes off road.

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Axles are currently available in two versions.
1,6:1 for heavy offroad use
1,16:1 for daily use, travel and expedition

For the Land Rover Defender, Mercedes G and Jeep axles.
Portal drop boxes can be fitted to independent suspension vehicles too.

portal axles

Now, you could say “i don’t need it” but Unimog axles are heavy as hell. There’s another solution, Volvo C303 portals, but the price for these is skyrocketing day by day.
Think about it!

TEXT: Emilio Mocibob
PHOTO: Tibus Off Road Engineering

 

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Emilio Močibob
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Emilio Močibob

Administration at Extreme4x4 Europe media
Photographer, reporter and promoter for various off road competitions. Owner of the website. We are reporting from the biggest European events and we are trying to do a good job. I hope you like it. In the business since 2010.
Emilio Močibob
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Emilio Močibob

Photographer, reporter and promoter for various off road competitions. Owner of the website. We are reporting from the biggest European events and we are trying to do a good job. I hope you like it. In the business since 2010.

5 thoughts on “Portal Axles Tibus – Off Road Engineering

  • 05/12/2016 at 03:02
    Permalink

    Hi, I’m also curious to know if you have a portal axle kit for the Iveco Daily turbo 4×4, in this case a 2007 model.

  • 04/06/2016 at 20:32
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    We interesent axle and suspension for G class

  • 07/05/2016 at 09:27
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    Please visit Tibus website and see what they can do for you. I am happy I can help

  • 06/05/2016 at 13:01
    Permalink

    Good day
    could we put the tibus portal axles on a 2008 turbo daily iveco 4×4 3.5 or 5.o ton?

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