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Head to head

Bockmann Portax K vs Ifor Williams CT166

The Ifor Williams CT166 carries 1,350kg more and is rated 1.1 tonnes heavier gross.

Last reviewed 13 September 2026

Bockmann Portax K
Bockmann Portax K - image: jswhorseboxes.co.uk
Ifor Williams CT166
Ifor Williams CT166 - image: Shropshire Trailer Hire

Key differences

Specifications side by side

Bockmann Portax KIfor Williams CT166
Gross weight2400kg3500kg
Payload1265kg2615kg
Internal length3560mm-
Internal width1750mm-
Internal height2350mm-
Unladen weight-885kg
Internal bed-4.87m x 1.90m

Sources: Bockmann Portax K, Ifor Williams CT166. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the Portax K if...

A mid-range Portax with a front unloading ramp, bought by owners who value being able to lead a horse out the front rather than reversing it out. It sits below the Big Portax models in size and price.

Listed by

Full Portax K specifications →

Buy or hire the CT166 if...

  • you want one that carries 1,350kg more
  • you want one that is rated 1.1 tonnes heavier gross

Bought by garages, recovery operators and plant hire firms who load low vehicles or compact machinery by tilting the deck to ground level instead of driving up loading ramps. The narrower CT166 bed suits standard cars and single machines.

Listed by

Full CT166 specifications →

Common questions

What is the difference between the Bockmann Portax K and the Ifor Williams CT166?

The Ifor Williams CT166 carries 1,350kg more and is rated 1.1 tonnes heavier gross. The Bockmann Portax K is a aluminium 2-horse trailer with front exit; the Ifor Williams CT166 is a a tilt-bed car and machinery transporter trailer.

Which carries more, the Bockmann Portax K or the Ifor Williams CT166?

The Ifor Williams CT166, by 1,350kg.

Can I tow the Bockmann Portax K or the Ifor Williams CT166 on a car licence?

Yes, as far as the licence goes. Both are rated at or under 3,500kg gross, and a car (B) licence has covered towing up to 3,500kg since 16 December 2021. Your car still has to be rated to tow the loaded weight - check the handbook or the VIN plate.

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