Head to head
Bockmann Portax K vs Brian James A4 Transporter
The Brian James A4 Transporter carries 965kg more and is rated 600kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Payload: the Brian James A4 Transporter carries 965kg more.
- Gross weight: the Brian James A4 Transporter is rated 600kg heavier gross.
Specifications side by side
| Bockmann Portax K | Brian James A4 Transporter | |
|---|---|---|
| Gross weight | 2400kg | 3000kg |
| Payload | 1265kg | 2230kg |
| Internal length | 3560mm | - |
| Internal width | 1750mm | - |
| Internal height | 2350mm | - |
| Unladen weight | - | 770kg |
| Internal bed | - | 4.5m x 2.0m |
| Axles | - | Twin axle |
Sources: Bockmann Portax K, Brian James A4 Transporter. 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
- Böckmann UK Trailers & Horseboxes - Cinderford, Littledean
Buy or hire the A4 Transporter if...
- you want one that carries 965kg more
- you want one that is rated 600kg heavier gross
The A4 Transporter suits driving schools, small dealers and enthusiasts who need to move one car at a time behind a car-derived tow vehicle, offering a simple twin-axle bed without the cost of a beavertail or enclosed body. Its compact size makes it easier to store and manoeuvre than the longer trailers in the A Transporter range.
Listed by
- Compass Trailers - Lewes, Ringmer
- Saxons Trailers - Westerham, Biggin Hill
- R M Trailer Centre - Middlesbrough, North Ormesby
- Formula Trailers,, Brian-James Trailers Main Dealer in the SW UK - Wellington, Poole
Common questions
What is the difference between the Bockmann Portax K and the Brian James A4 Transporter?
The Brian James A4 Transporter carries 965kg more and is rated 600kg heavier gross. The Bockmann Portax K is a aluminium 2-horse trailer with front exit; the Brian James A4 Transporter is a twin-axle open car transporter trailer from Brian James' A Transporter range, built for towing one car on a 4.5m bed..
Which carries more, the Bockmann Portax K or the Brian James A4 Transporter?
The Brian James A4 Transporter, by 965kg.
Can I tow the Bockmann Portax K or the Brian James A4 Transporter 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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